Carb for a built 1980 Vette
Thread Starter
Burning Brakes
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Carb for a built 1980 Vette
Hi all
i´m looking for a carb, leaning towards a road demon
engine is 10:1, L98D-Port heads, XE 262 cam (212/218 @.050 )
Weiand DP intake, stock converter, stock gearing
since i have no experience with carbs, can you suggest me one?
thank you!!!!
i´m looking for a carb, leaning towards a road demon
engine is 10:1, L98D-Port heads, XE 262 cam (212/218 @.050 )
Weiand DP intake, stock converter, stock gearing
since i have no experience with carbs, can you suggest me one?
thank you!!!!
Race Director
Joined: Jun 2000
Posts: 10,049
Likes: 675
From: FL
With that mild a cam and stock gearing/converter, I would stick with the Quadrajet. The small primaries will give you great throttle response and mileage and the secondaries will flow what you need for power.
Contact Lars for some hints on tuning the Q-Jet for use with this combo.
Contact Lars for some hints on tuning the Q-Jet for use with this combo.
Team Owner
Joined: May 2001
Posts: 29,745
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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
CI 6-7-8 Veteran
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St. Jude Donor '06-'10, '13
I agree. That cam is going to be great for some low end grunt and you don't want to kill the off the line power and throttle response with a large carb.
The stock QJet would be the best bet.
Either get the stock QJet tuned up and running right or go to a 670 CFM Avenger or similar version in a Demon.
That engine is just shy of a ZZ4 build - 10:1, same heads, less cam. You don't need anything big at all.
The stock QJet would be the best bet.
Either get the stock QJet tuned up and running right or go to a 670 CFM Avenger or similar version in a Demon.
That engine is just shy of a ZZ4 build - 10:1, same heads, less cam. You don't need anything big at all.
Veteran
Joined: Oct 2005
Posts: 1,284
Likes: 81
From: Nashville, TN
My father in law is running the road demon 725cfm vacuum secondaries on his 355 with CC XE268 cam with good success. I wouldn't put a 725 on a 350 though I would go smaller with the 625 cfm road demon.
Le Mans Master
Joined: Jan 2003
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From: Tuttle OK
Cruise-In VIII Veteran
Team Owner
Joined: May 2001
Posts: 29,745
Likes: 3
From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
CI 6-7-8 Veteran
CI-VIII Burnout Champ
St. Jude Donor '06-'10, '13
Thread Starter
Burning Brakes
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
I agree. That cam is going to be great for some low end grunt and you don't want to kill the off the line power and throttle response with a large carb.
The stock QJet would be the best bet.
Either get the stock QJet tuned up and running right or go to a 670 CFM Avenger or similar version in a Demon.
That engine is just shy of a ZZ4 build - 10:1, same heads, less cam. You don't need anything big at all.
The stock QJet would be the best bet.
Either get the stock QJet tuned up and running right or go to a 670 CFM Avenger or similar version in a Demon.
That engine is just shy of a ZZ4 build - 10:1, same heads, less cam. You don't need anything big at all.
thanks for your replies...
problem is, that theres a unknown Holley carb on it...the pre-owner had the car "tuned" , i dont think, they didnt know, what they do...
would you go with a 625cfm Road demon?
thank you
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Team Owner
Joined: May 2001
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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
CI 6-7-8 Veteran
CI-VIII Burnout Champ
St. Jude Donor '06-'10, '13
Yes -- I think a 625 CFM carb would work great for that engine. I personally have had better luck with the Edelbrock carbs than the Holley's but anything in the 625 - 675 range would work well. The stock QJet is 795, but it gets away with it with having a small primary size for your normal street driving.
