Choosing Carburetor HELP
Thread Starter
Intermediate
Joined: Aug 2011
Posts: 38
Likes: 0
Choosing Carburetor HELP
Hey guys,
I'm finalizing my engine build but i need help in choosing a carb.
I'm building a 383 stroker with aluminum heads. however, I'm not sure which carb i should choose.
At first i was going for an edelbrock performer 600cfm with manual choke.
However, I've been told that i should run a 650 instead, but there is such a price increase is really steep.
Should I go for the 650cfm, the 600cfm which is about $40 cheaper...Or should I go for the edelbrock 750cfm which is still about $30 cheaper than the 650.
The engine is gonna have around 400hp and it will be a daily driver
Thanks
I'm finalizing my engine build but i need help in choosing a carb.
I'm building a 383 stroker with aluminum heads. however, I'm not sure which carb i should choose.
At first i was going for an edelbrock performer 600cfm with manual choke.
However, I've been told that i should run a 650 instead, but there is such a price increase is really steep.
Should I go for the 650cfm, the 600cfm which is about $40 cheaper...Or should I go for the edelbrock 750cfm which is still about $30 cheaper than the 650.
The engine is gonna have around 400hp and it will be a daily driver
Thanks
Melting Slicks
Joined: Mar 2006
Posts: 2,465
Likes: 0
From: Orange Park Fl
Okay, since nobody else is chiming in: You are building a 383, so I assume you are looking for performance. The Edelbrock Performer carbs, in spite of the name, are probably not the best way to go.
What is your primary objective?
If you are primarily interested in best time at the track, get a used Holley 4150.
If the car will be primarily for street use, get a Quadrajet.
God bless, Sensei
What is your primary objective?
If you are primarily interested in best time at the track, get a used Holley 4150.
If the car will be primarily for street use, get a Quadrajet.
God bless, Sensei
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
Gears? Transmission type? Intake type? More information needed 
I'll offer a rare disagreement with Sensei - if you don't have a Q-Jet, don't buy one.
Great carbs to be sure, and worth keeping if you have one - but there are other equally good or better choices available aftermarket for this particular application.
I am hoping we can avoid the "carb wars" on this one
I'll offer a rare disagreement with Sensei - if you don't have a Q-Jet, don't buy one.
Great carbs to be sure, and worth keeping if you have one - but there are other equally good or better choices available aftermarket for this particular application.
I am hoping we can avoid the "carb wars" on this one
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
How high do you plan on spinning it? If it's never going to see above 5 grand, the 600 will probably be plenty of carb, but if you are gonna be zinging that thing up past 7 grand, go with the 750. Like Billla says, need more info to make a more specific recommendation.
Scott
Scott
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Classic Holley 750 ( 4779 ) can be used from mild to wild, had the same carb on 400 hp 355ci to 550 406ci but don't listen to me just because I have done it 
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Burning Brakes
Joined: Feb 2006
Posts: 1,223
Likes: 4
From: Regina Saskatchewan
If you have a manual shift AND you want maximum performance and some loss of gas mileage choose a DP - otherwise pick a vacuum secondary
If you have an automatic don't choose a DP. Especially if its a street car.
I have a 383 with a 650 cfm carb. I'm happy
If you have an automatic don't choose a DP. Especially if its a street car.
I have a 383 with a 650 cfm carb. I'm happy
