Question: What Size Carburetor Do I Need For A 302?

Is a 750 cfm carb too big for a 302?

Its either the jets are too big or if its a Holley it could have a blown power valve or it may be leaking gas from the floats being set too high. In general, if you take a 750 cfm carb out of the box and bolt it on a 302 it may need to be rejetted down some but not always.

What is the best carburetor for a Ford 302?

Registered. For a stock 302, or slightly warmed over one, I’d go with an Autolite 4100 series.

Is a 650 cfm carb too big for a 302?

Yep, 650 is too big for a street 302.

What cfm carburetor do I need?

The formula for calculating how much CFM (cubic feet per minute) an engine requires is: CFM = Cubic Inches x RPM x Volumetric Efficiency รท 3456. Any ordinary stock engine will have a volumetric efficiency of about 80%. Even with about a 10% cushion, a 500 CFM carburetor will handle this engine great.

Is a 600 cfm carb too big for a 302?

A 600 cfm Edelbrock is fine for a 289/302. If you have any kind of aftermarket cam or other mods, read your plugs in a couple hundred miles.

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What is a 600 CFM carburetor?

A 600 CFM carburetor can be a great choice for a wide variety of engines. They can be a perfect match for a highly tuned race engine around 300 cubic inches all the way up to a street tuned big block.

Does a carburetor add horsepower?

After you fix what’s limiting performance, an Edelbrock Performer intake can add as much as 10 HP. The FAQ forum is a good place to ask questions. There are differences between engines and performance improvements.

Is 600 cfm carb big enough?

A 600-cfm carburetor may perform quite well on a stock 350 Chevy. However, the minute you start weaving in power adders like a hotter cam, a dual-plane performance intake manifold, and aluminum heads you’re going to need 700-750 cfm.

What happens if carburetor is too small?

If the carburetor is too small, it restricts airflow into the engine. The cylinder can’t fill up all the way. This starves the engine and results in slow acceleration and a lack of top-end power. A larger displacement engine running at higher rpm will require more air and fuel.

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