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#1 |
Registered User
Join Date: May 2011
Location: sacramento Ca
Posts: 84
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what carb are all you bbc folks running ?
so im just wondering what you all with 396-402 big blocks are running for a carb, and if you have gone smaller for mpg? any input is great, oh along with carb what other mods (engine wise ) are you running ? thanks all.
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#2 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: what carb are all you bbc folks running ?
I am running the stock Q-jet. With the smaller primaries and large secondaries it works very well on the big blocks.
JIm
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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#3 |
Registered User
Join Date: Dec 2001
Location: harvard, il. USA
Posts: 389
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Re: what carb are all you bbc folks running ?
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#4 |
Registered User
![]() Join Date: Oct 2010
Location: Tucker, GA
Posts: 128
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Re: what carb are all you bbc folks running ?
Stock Q-jet on my 396
Posted via Mobile Device
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"You gonna pull them pistols or whistle dixie ?" |
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#5 |
Registered User
Join Date: Jan 2009
Location: Arizona
Posts: 404
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Re: what carb are all you bbc folks running ?
Edelbrock 750, 465 BB, 400HP and 450 lb/ft Torque.
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#6 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: what carb are all you bbc folks running ?
I had a quadra jet rebuilt for my 402, I had thought it was a big block carb when I had it done, ran like crap. Bought an Edelbrock 750 (same as on the cad 425) and love it.
I guess once I get the small motor ready for the longhorn I have a fresh quadra jet for it. |
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#7 |
Registered User
Join Date: Mar 2011
Location: Chesapeake, VA
Posts: 578
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Re: what carb are all you bbc folks running ?
750 Edelbrock here
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My 72 Suburban Build - http://67-72chevytrucks.com/vboard/s...d.php?t=454019 79 Volvo Turbo LS Build - http://67-72chevytrucks.com/vboard/s...d.php?t=594252 Buggy Bed for son - http://67-72chevytrucks.com/vboard/s...d.php?t=657350 |
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#8 |
Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: what carb are all you bbc folks running ?
I am running the stock Q-jet off of my 350 on a stock 454 and it is working out ok.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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#9 |
Registered User
Join Date: May 2011
Location: sacramento Ca
Posts: 84
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Re: what carb are all you bbc folks running ?
Thanks all I'm just weighing options . Iv got a holley 570 was going to use on a small block I don't have any more . Way too small I'll probably sell and get a 700 + cfm for the truck thx again
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#10 |
Registered User
Join Date: Feb 2011
Location: Orient, Oregon
Posts: 722
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Re: what carb are all you bbc folks running ?
As an old Mr. Goodwrench graduate........(1978 thru 1983).........
Wentworth Chevrolet Truck Shop......... Portland, Oregon I learned all the tricks from the best of the best on how to repair....modify.... or maximize the Rochester Q-jet. There is no doubt, if done properly, that the R-Chester 4-Jet is the best carb available for BBC heavy duty applications. A good Q-jet tech can give you the best performance and economy from the same carb if ya' give him time to Dyno or road test the jet & needle sets... Most anyone who has ever jumped into a rig with a big-block and stepped on it got quite a thrill either from "off the line" or from the mid rpm torque curve, but if you invest some time & patience into it......you can get the full yield of torque possible...bottom to top....from your BBC with that carb. You can get pretty close by the #'s on the bench. But by actually putting the engine to work, you can find that magic combination that makes that big-block just sing.... Just sayin'........(not sellin')
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Les Hunter '59 3803 someday to be 3853 '63 GMC K1000...351E, TH400 Daily '66 GMC 4000...351C, 5&2 |
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#11 |
Registered User
Join Date: Feb 2011
Location: Orient, Oregon
Posts: 722
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Re: what carb are all you bbc folks running ?
For the record....
We recorded well over 1000 CFM on the stock Q-Jet off of a '76 454 truck on the bench. That's a ton of air. Needless to say..... you sure do need to get it right on the fuel/metering end. There should be a Q-Jet wizard somewhere near you. He's probably really old....or busy fishin'.
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Les Hunter '59 3803 someday to be 3853 '63 GMC K1000...351E, TH400 Daily '66 GMC 4000...351C, 5&2 |
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#12 | |
Registered User
Join Date: May 2011
Location: sacramento Ca
Posts: 84
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Re: what carb are all you bbc folks running ?
Quote:
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#13 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: what carb are all you bbc folks running ?
Stock Q-jet on my 402 Just got it refurbished and its on its way to Ohio from Ca.
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A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! Last edited by 70cst; 05-29-2011 at 10:34 PM. |
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#14 |
Registered User
Join Date: Feb 2010
Location: Southern California
Posts: 543
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Re: what carb are all you bbc folks running ?
Running a Q-jet on my 454. No problems, in fact has been better performing than the eb that was on there previously.
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Doug '72 GMC K2500 Suburban 4x4 |
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#15 |
Registered User
Join Date: May 2011
Location: sacramento Ca
Posts: 84
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Re: what carb are all you bbc folks running ?
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#16 |
~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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Re: what carb are all you bbc folks running ?
check out roseville rod shop great shop
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is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex |
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#17 | |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: what carb are all you bbc folks running ?
Quote:
I am 90% sure this is where the carb went...if not I will make a correction. http://www.thecarbshop.com/
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#18 |
Registered User
Join Date: May 2011
Location: sacramento Ca
Posts: 84
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Re: what carb are all you bbc folks running ?
awsome 70cst thank you much for the info.
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#19 |
My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: what carb are all you bbc folks running ?
Hmmm.....having a really hard time buying it. What flow bench did you use? You're telling me you got a stock 750 to well over 1,000? Please provide details.
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#20 |
2WD Jimmy
![]() Join Date: Mar 2005
Location: Davis County, Utah
Posts: 2,564
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Re: what carb are all you bbc folks running ?
The Quadrajet is an awesome carb if rebuilt correctly.. I would suggest the Carb Shop in Ontario Ca. Just cleaning it and putting in a carb kit is Not a rebuild. just sayin.
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#21 |
Registered User
Join Date: Sep 2010
Location: British Columbia
Posts: 484
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Re: what carb are all you bbc folks running ?
Holley 600 CFM on 454!
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Trevor "You already said spite" |
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#22 |
Not Mine But A beauty
Join Date: Aug 2004
Location: Southern CaL
Posts: 368
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Re: what carb are all you bbc folks running ?
750 Mighty Demon on a 454
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68 Chevy Shortbed 454/400 2000 Chevrolet Camaro SS 6spd 2011 Silverado 5.3 6spd auto |
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