What carb should do you run? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

heathbirkendahl · 08-29-2012, 08:02 PM

Edelbrock or Holly? What size?

GASoline71 · 08-29-2012, 08:57 PM

Holley... always... cuz they're way cooler than Edelpukes... get a big one.

Gary

69GWC · 08-29-2012, 09:41 PM

Lol, I have allways ran Holleys easy to work on and I have had very little problems from them.
The 70 I just bought has a Eledlbrock on it but I can say much about it not owning it for very long but it starts easy and runs out well.

What motor are you looking to install on and what are the specs on it , might help everyone answer your question better.
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**screaminchevypickup** · 08-29-2012, 09:57 PM

Quickfuel!!
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BADPURPLE70CHEVY · 08-29-2012, 10:05 PM

Quote:

Originally Posted by screaminchevypickup

Quickfuel!!
Posted via Mobile Device

830 cfm quickfuel. Runs perfect.

**fakerwade** · 08-29-2012, 10:06 PM

Rochester spread bore,, better mpg, better performance. Holley's and re-hashed carter's (edelbrock's) cannot match the thrill of those GIANT secondaries opening up!!

vern650 · 08-29-2012, 11:34 PM

i know they don't get a lot of love on here but I've ran edelbrock on a few trucks without the issues talked about here, fuel boiling, etc. and are pretty easy to tinker with. actually the only problem i ever had with them was off camber offroading, if u don't stay on the gas they flood out in those situations. that's another place the q-jet gets a point never had that problem with a q-jet. never tried holley, didn't hear much good about them while growing up.

jablack · 08-29-2012, 11:37 PM

Edelbrock. I've never had problems with them.

MARKDTN · 08-30-2012, 07:19 AM

None! Convert to fuel injection.

Really need to know the application to give a good answer. But IMHO in general if you want a cruiser, you need a Quadrajet. If you want a racer, you need a Holley.

68Stepbed · 08-30-2012, 08:50 AM

I've personally never had a good working Q-jet, so won't give an opinion for them. I have had 6 Edelbrocks and 3 Holleys. 4 of those Edelbrocks were on the same engine in a matter of months becasue NONE of them would run right. One was on a 305 and ran just as bad as the others. The only good one I had was a 500cfm manual choke version on a stock 350.

The 3 Holleys I've had: The first and second were on my old 350. Both were 570 Street Avengers. The first one was perfect until I stripped the threads in the main body while changing gaskets on it. I called Holley and they sent me a FREE replacement. They usually send remanned units, but they were out, so I got a new one! That carb ran perfect also until the motor puked. When I say it ran perfect, it killed all the theories about having to retune it every time the wind blew a different direction. I set the initial tune, and never touched it, no matter the weather condition.

I'm on my third Holley now on my new LS1 engine. It's a 750 Street HP and I LOVE IT!!! I'm still in the tuning stages with it(yes they do require more tuning) but it's close and runs great!

Those are just what I've owned. My dad, however has three vehicles. One with an Edelburp, and two with Holleys. The two with Holleys run perfect all the time. The one with the Edelbrock is finicky, doesn't work well in cold weather, stumbles under WOT, and overall doesn't get as good of mileage as the two with Holleys.

PanelDeland · 08-30-2012, 09:22 AM

I have no personal preference though I've had more Quads than Holleys.I think th real deal is tuning.If you know how to tune either,they will work fine.Most carb probems I have seen come from people not knowing how to check and repair when rebuilding(loose butterfly shafts coe to mind) or not knowing how to tune.I've seen both work well and both act like crap.I guess it just depends on which you want to learn to tune.

custom1970 · 08-30-2012, 09:33 AM

Holley- 750 spread bore, dbl pump. love it!! tried Edelbrock once when i was having my Holley re-anodized never could get it to run right, sent it back second one wasn't much better. So so happy when i finally got my holley back, looking brand new.

Of course my Holley is 40 yrs old so i can't comment much on the new ones, but i can say they last....

El Campo · 08-30-2012, 09:47 AM

I took a chance and got one of the 950 Proforms. It is essentially a relabeled Quickfuel. On my 535 BBC on the dyno without even touching a single screw or jet on it the fuel/air was absolutely perfect. It lets the big cammed high compression BB idle all day long and it starts like it is fuel injected. Was very suprised but happy with it.

heathbirkendahl · 08-30-2012, 11:07 AM

This is all great info! Thank you!

I'm running this on a stock 350 with a mild cam, intake and a Edelbrock carb!

My last truck had a Quadrajet and the secondaries opened up nicely!! The Edelbrock feels like the secondaries are to small. Feels like I"m not getting enough fuel.

DevilDog Aggie · 08-30-2012, 12:16 PM

Quote:

Originally Posted by heathbirkendahl

This is all great info! Thank you!

I'm running this on a stock 350 with a mild cam, intake and a Edelbrock carb!

My last truck had a Quadrajet and the secondaries opened up nicely!! The Edelbrock feels like the secondaries are to small. Feels like I"m not getting enough fuel.

I like my quadrajet that I rebuilt myself. Of course that does make me a little biased! :-)

LOCKEdown72 · 08-30-2012, 12:45 PM

I have a Q-Jet on my 327 with a mild cam...you can definitely tell when the secondaries open up. I plan on swapping the intake soon and will more than likely swap the carb at the same time.

BIGBLU 72 · 08-30-2012, 12:49 PM

QuickFuel hotrod series 680 cfm is what I'm running on my 406
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slipkorn34 · 08-30-2012, 05:02 PM

ive got an old holley spreadbore from when they were based on autolite 4100. i love this carb but you cant change the squirter size and i dont wanna drill into it. besides the hiccup off idle and the fact that i havnt tuned it in perfectly yet i like it and ill probably just replace it with the newer holley spreadbore once i have the cash

rico7769 · 08-30-2012, 10:45 PM

holley 650 model 80457s. Makes for easy adjustments and fairly ready to run out of the box. One prob in three years but it was my fault for not changing out the fuel filter and clogging it up

heathbirkendahl · 08-31-2012, 12:15 AM

Thank you everyone! Great info!
Posted via Mobile Device

DevilDog Aggie · 08-31-2012, 10:19 AM

Quote:

Originally Posted by custom1970

Holley- 750 spread bore, dbl pump. love it!! tried Edelbrock once when i was having my Holley re-anodized never could get it to run right, sent it back second one wasn't much better. So so happy when i finally got my holley back, looking brand new.

Of course my Holley is 40 yrs old so i can't comment much on the new ones, but i can say they last....

Gorgeous bay!!!! Hopefully mine will look that nice someday!!!

08-29-2012, 08:02 PM	#1
heathbirkendahl Registered User Join Date: Jul 2012 Location: Campbell, CA Posts: 452	What carb should do you run? Edelbrock or Holly? What size? __________________ 1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides

08-29-2012, 09:41 PM	#3
69GWC Registered User Join Date: Jun 2012 Posts: 1,089	Re: What carb should do you run? Lol, I have allways ran Holleys easy to work on and I have had very little problems from them. The 70 I just bought has a Eledlbrock on it but I can say much about it not owning it for very long but it starts easy and runs out well. What motor are you looking to install on and what are the specs on it , might help everyone answer your question better. Posted via Mobile Device

08-29-2012, 09:57 PM	#4
screaminchevypickup Laid Back Join Date: Apr 2010 Location: mcloud ok Posts: 2,658	Re: What carb should do you run? Quickfuel!! Posted via Mobile Device __________________ 72 chevy swb Direct dealers for.. Vintage Air, Porterbuilt, Billet Specialties,Budnik wheels ,eddie motorsports, raceline wheels, intro wheels, Dakota Digital, precision, unisteer, Trimparts, and many many more... Laid Back Recreations.. Full restoration shop and full paint and body.. Kyle http://67-72chevytrucks.com/vboard/s...d.php?t=574629

08-29-2012, 10:06 PM	#6
fakerwade Senior Member Join Date: Oct 2011 Location: Lewiston, ID. Posts: 627	Re: What carb should do you run? Rochester spread bore,, better mpg, better performance. Holley's and re-hashed carter's (edelbrock's) cannot match the thrill of those GIANT secondaries opening up!! __________________ Wade , JUST WALK AWAY, AND I'LL SPARE YOUR LIVES!!! , Build thread "TANGERINE" http://67-72chevytrucks.com/vboard/s...d.php?t=498570 Board Members Met: bigblock68, ol_skool_chevy ,68TT,atvpro

08-29-2012, 11:34 PM	#7
vern650 Registered User Join Date: Jul 2012 Location: hyrum utah Posts: 45	Re: What carb should do you run? i know they don't get a lot of love on here but I've ran edelbrock on a few trucks without the issues talked about here, fuel boiling, etc. and are pretty easy to tinker with. actually the only problem i ever had with them was off camber offroading, if u don't stay on the gas they flood out in those situations. that's another place the q-jet gets a point never had that problem with a q-jet. never tried holley, didn't hear much good about them while growing up. __________________ '67 c10 lwb-"toothpaste fresh" '05 3500 dmax/alli ext.cb lwb 4X4

08-29-2012, 11:37 PM	#8
jablack Classic Chevy Recycler Join Date: Dec 2007 Location: Alabama Posts: 422	Re: What carb should do you run? Edelbrock. I've never had problems with them. __________________ 2004 Chevrolet Trailblazer EXT 1970 Chevrolet C50 1979 Chevrolet C30 Need another 67 or 68 soon...

08-30-2012, 07:19 AM	#9
MARKDTN Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 2,144	Re: What carb should do you run? None! Convert to fuel injection. Really need to know the application to give a good answer. But IMHO in general if you want a cruiser, you need a Quadrajet. If you want a racer, you need a Holley. __________________ '83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project

08-30-2012, 08:50 AM	#10
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: What carb should do you run? I've personally never had a good working Q-jet, so won't give an opinion for them. I have had 6 Edelbrocks and 3 Holleys. 4 of those Edelbrocks were on the same engine in a matter of months becasue NONE of them would run right. One was on a 305 and ran just as bad as the others. The only good one I had was a 500cfm manual choke version on a stock 350. The 3 Holleys I've had: The first and second were on my old 350. Both were 570 Street Avengers. The first one was perfect until I stripped the threads in the main body while changing gaskets on it. I called Holley and they sent me a FREE replacement. They usually send remanned units, but they were out, so I got a new one! That carb ran perfect also until the motor puked. When I say it ran perfect, it killed all the theories about having to retune it every time the wind blew a different direction. I set the initial tune, and never touched it, no matter the weather condition. I'm on my third Holley now on my new LS1 engine. It's a 750 Street HP and I LOVE IT!!! I'm still in the tuning stages with it(yes they do require more tuning) but it's close and runs great! Those are just what I've owned. My dad, however has three vehicles. One with an Edelburp, and two with Holleys. The two with Holleys run perfect all the time. The one with the Edelbrock is finicky, doesn't work well in cold weather, stumbles under WOT, and overall doesn't get as good of mileage as the two with Holleys. __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

08-30-2012, 09:22 AM	#11
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: What carb should do you run? I have no personal preference though I've had more Quads than Holleys.I think th real deal is tuning.If you know how to tune either,they will work fine.Most carb probems I have seen come from people not knowing how to check and repair when rebuilding(loose butterfly shafts coe to mind) or not knowing how to tune.I've seen both work well and both act like crap.I guess it just depends on which you want to learn to tune. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

08-30-2012, 09:33 AM	#12
custom1970 Member Join Date: Jan 2011 Location: Stuart, Florida Posts: 459	Re: What carb should do you run? Holley- 750 spread bore, dbl pump. love it!! tried Edelbrock once when i was having my Holley re-anodized never could get it to run right, sent it back second one wasn't much better. So so happy when i finally got my holley back, looking brand new. Of course my Holley is 40 yrs old so i can't comment much on the new ones, but i can say they last.... Attached Images __________________ 1970 CST LB Fleetside, 402 BB, PS, PB,AC 1968 Firebird 400 conv. 1965 Chris Craft 17' wood ski boat (SN #0001)

08-30-2012, 09:47 AM	#13
El Campo Registered User Join Date: Jul 2011 Location: El Campo, Tx Posts: 1,246	Re: What carb should do you run? I took a chance and got one of the 950 Proforms. It is essentially a relabeled Quickfuel. On my 535 BBC on the dyno without even touching a single screw or jet on it the fuel/air was absolutely perfect. It lets the big cammed high compression BB idle all day long and it starts like it is fuel injected. Was very suprised but happy with it. __________________ 72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!!

08-30-2012, 11:07 AM	#14
heathbirkendahl Registered User Join Date: Jul 2012 Location: Campbell, CA Posts: 452	Re: What carb should do you run? This is all great info! Thank you! I'm running this on a stock 350 with a mild cam, intake and a Edelbrock carb! My last truck had a Quadrajet and the secondaries opened up nicely!! The Edelbrock feels like the secondaries are to small. Feels like I"m not getting enough fuel. __________________ 1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides

08-30-2012, 12:45 PM	#16
LOCKEdown72 Registered User Join Date: Aug 2012 Location: Panama City, FL Posts: 10	Re: What carb should do you run? I have a Q-Jet on my 327 with a mild cam...you can definitely tell when the secondaries open up. I plan on swapping the intake soon and will more than likely swap the carb at the same time.

08-30-2012, 12:49 PM	#17
BIGBLU 72 Registered User Join Date: Dec 2008 Location: Ashland, KY Posts: 700	Re: What carb should do you run? QuickFuel hotrod series 680 cfm is what I'm running on my 406 Posted via Mobile Device __________________ 68 C10 LWB 2/4 drop 406/th400/3.73posi 04 Silverado SS LQ9 6.0/4L65e/4.11posi AWD

08-30-2012, 05:02 PM	#18
slipkorn34 Registered User Join Date: Dec 2009 Location: Eden Prairie, MN Posts: 73	Re: What carb should do you run? ive got an old holley spreadbore from when they were based on autolite 4100. i love this carb but you cant change the squirter size and i dont wanna drill into it. besides the hiccup off idle and the fact that i havnt tuned it in perfectly yet i like it and ill probably just replace it with the newer holley spreadbore once i have the cash __________________ 1969 mercury cougar XR-7 - sold 1978 Chevy C-10 Scottsdale - sold 1996 chevy k1500 - sold 1970 mercury monterey - sold 1971 chevy c10 4 speed 4x4 - dd



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08-30-2012, 10:45 PM	#19
rico7769 Hybrid67 Join Date: Jan 2009 Location: Martinez, GA Posts: 195	Re: What carb should do you run? holley 650 model 80457s. Makes for easy adjustments and fairly ready to run out of the box. One prob in three years but it was my fault for not changing out the fuel filter and clogging it up __________________ Keep em' Running! All show.....no go

08-31-2012, 12:15 AM	#20
heathbirkendahl Registered User Join Date: Jul 2012 Location: Campbell, CA Posts: 452	Re: What carb should do you run? Thank you everyone! Great info! Posted via Mobile Device __________________ 1971 C/10 - Orange & White 2009 GMC 1500 - Lowered 3/4 22' KMC Slides

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