To arrive at the most appropriate carburetor choice, there's a basic formula: engine displacement multiplied by maximum rpm divided by 3,456. For example: a typical 355ci small-block—a 0.030-over rebuild—with a 6,000-rpm max engine speed would work well with a 616-cfm carb ((355 x 6,000) 3,456 = 616.32).
Is a 650 cfm carb to big for a 350?
If you're expecting a maximum of 6,500 rpm, you're going to need a 650- to 700-cfm carburetor. These sizing numbers are only the beginning of carburetor selection—a baseline. A 600-cfm carburetor may perform quite well on a stock 350 Chevy.
What happens if you put a bigger carburetor?
A bigger carburetor alone will not make your bike go faster. In most cases, your bike won't even start or idle roughly with a carburetor that's too big. For more power, you should look into a full system performance exhaust and rejetting your carb (not replacing it entirely).
How much horsepower will a 650 cfm carb support?
450-470 hp
How many miles will a 454 last?
454 will run 200k with the right oil.
Which is better a 454 or a 350?
In a light to medium weight car, a 350 will probably offer you the happiest experience, especially in a daily driver role. In a truck, the 454 will probably feel better to your foot. In an all out performance car, the 454 will probably be more likable as long as the car is a straight line car (drag racing etc).
How much horsepower is a 454?
The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque.
Are Quadrajet carburetors any good?
The truth is, a properly tuned Quadrajet can be just as efficient and reliable as a bolt-on substitute performance carburetor. And because they were used on so many original-equipment applications, they are readily available from many used parts suppliers at a very reasonable cost.
How does a Quadrajet carb work?
https://www.youtube.com/watch?v=zYO1jrVzsG8
How many CFM is a Quadrajet?
Quadrajets can range anywhere in between 600 and 800 CFM. Most are rated 750 CFM or higher. Quadrajets are used by many GM street car enthusiasts; however, they are also disliked by just about as many.