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11-01-2004, 02:43 PM
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#1 |
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72 Cheyenne
Join Date: Oct 2001
Location: San Diego
Posts: 2,086
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Help me pick a carb
Well my Q jet is on it's last leg so I'm looking around for a carb perfect for my set up, let me know what you guys think.
390 HP 350/350 .060 bore, 10.5-1 CR Accel HEI/super coil single plane intake 2.02/1.60 hump heads/1.6 roller tip rockers .306 duration .550 lift cam 2700-3000 stall converter Dana 60 w/3.55 gears LWB truck with 30 inch tires Thanks guys, Dion |
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11-01-2004, 04:17 PM
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#2 |
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67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Dion, I'm guessing a 750 Speed Demon or maybe 770 Holley Street Avenger or even a 3310. Wouldn't it be nice to try a carb out before buying it?
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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11-01-2004, 04:45 PM
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#3 |
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Registered User
Join Date: Sep 2003
Location: Boise ID
Posts: 609
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My vote is on the 750 Speed Demon!
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"72" Red CORVETTE 4-speed 350 "70" Chevy Short Bed early stages of resto. Edel 600 cfm carb Weiand Stealth Intake HEI shorty Headers 4/2 Drop 295 50R 15 TOYO on 10 inch wide corvette rally rims at all 4 corners. "CHEVY RULES"
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11-01-2004, 04:46 PM
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#4 |
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Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,980
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Edelbrock 1411 or Jetted 1406 ..JMO.
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BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , |
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11-01-2004, 05:09 PM
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#5 |
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hmm...
Join Date: Jan 2004
Location: Culver, Indiana
Posts: 1,631
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rebuild the Qjet and throw on an electric fuel pump as well as the mechanical. That way you have a LOT of fuel going to the carb, and the mech pump can act as a regulator. It'll give you driveability, insane WOT response, that kickass howl that you only get with a spreadbore at WOT, and plenty of power.
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1983 Oldsmobile Delta 88 1967 Chevy C-10 stripper www.fcrperformance.com - wanna go...faster? talk to FCR. |
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11-01-2004, 09:51 PM
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#6 |
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Junior Member
Join Date: Sep 2003
Location: yreka, ca
Posts: 270
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I'd go with a Demon carb. We put one on my kid's Dart, and it works great. We got ours from Don Gould at www.4secondsflat.com He sells them for the same price as Summit and gives great service.
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63 C10 70 Coronet R/T 67 C10 70 Dart Swinger 71 K10 |
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11-01-2004, 09:54 PM
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#7 |
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Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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do you like working on carbs??? if not go edelbrock. if you do then a holley or demon wiould be good
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's  (the family car)1993 Cherokee work ride/weekend wheeler |
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11-01-2004, 09:58 PM
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#8 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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if your looking to make power go with something thats not an edelbrock they are fine for drivers but just arent tuneable enough for anything performance wise. you will make your most power with a holley for a heavy truck the 3310 works great
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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11-01-2004, 11:44 PM
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#9 |
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Registered User
Join Date: Oct 2004
Posts: 393
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Edelbrock makes an 800cfm version of their Carter AVS wannabe. Put 650cfm jets in the primaries and leave the secondaries as is-good top end,crisper on the bottom end.Of course, that's just my experience with a 70 Burb with a 406 reject flat track motor.
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11-02-2004, 12:15 AM
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#10 |
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Registered User
Join Date: Nov 2000
Location: Victoria, Texas
Posts: 71
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Based on your combo, I would say the Holley 700 cfm #4778 would be a good choice. This is a double pumper, but with your combination, fuel mileage doesn't seem to be a priority and throttle response will be instantaneous. I would stay away from larger cfm carbs, and the vacuum secondary models. They are great for economy, but nothing beats a properly sized and tuned Holley.
... Just my experience - adjust accordingly. |
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11-02-2004, 02:19 AM
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#11 |
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72 Cheyenne
Join Date: Oct 2001
Location: San Diego
Posts: 2,086
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Good info guys, thanks. I've been thinking about the Demon over the Q Jet but the Speed Demon is for cams with .240 or under duration so I'd probably have to go with the Mighty which is $500, ouch!
I'll contact BG techs and see what they say. Thanks again, Dion |
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11-02-2004, 02:49 AM
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#12 |
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Just Don't Stop!
 
Join Date: Feb 2004
Location: Dallas
Posts: 1,239
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it will be $500 well spent
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1968 C10 build in process TT LSA/6L90e/9" |
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11-02-2004, 09:35 AM
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#13 |
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Senior Member
Join Date: Dec 2001
Location: Redding,CA...USA
Posts: 4,736
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Dion...my carb builder is in San Diego...Ty is very good and inexpensive. Tell him Jim Scott refered you. Heres his link
http://www.tpcracing.com/testimonials.html
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
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11-02-2004, 12:15 PM
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#14 | |
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72 Cheyenne
Join Date: Oct 2001
Location: San Diego
Posts: 2,086
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Quote:
Thanks Jim, I'll check it out. DJ, that's not a bad idea, I might just do that. |
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11-02-2004, 09:44 AM
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#15 |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,891
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I'd run a holley 650 double pumper!
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Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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11-02-2004, 09:46 AM
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#16 |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,891
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Pick one up on ebay cheap and take it to the carb guy and get it built and tuned! I paid 50 bucks for mine and I have a buddy that is the bomb with a holley!!!!!!
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Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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