How to Adjust a Holley 670?

Answer One of the more unique Holley carburetors, the 670 (named for its 670 cubic feet per minute of air flow) is designed specifically for low-rider vehicles that pitch drastically to the left, right an... Read More »

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How to Adjust the Air on the Holley 650?

Adjusting the air on a Holley 650 will allow you to tune the air fuel mixture of the carburetor. This is needed when the engine is bogging or backfiring. Bogging occurs when too little air is intro... Read More »

How to Adjust Holley 600 Carburetors?

The Holley 600 carburetor is a large system that is designed to move air through the carburetor at a rate of 600 cfm. Adjusting the idle screws on this model is very similar to that of the smaller ... Read More »

How to Adjust a Holley 4-BBL Carburetor?

The Holley 4-BBL carburetor is a four-barrel design. This means that it has four intake ports and four butterfly valves and a secondary metering block. The purpose of the four-barrel design is to b... Read More »

How to Adjust a Holley Carburetor?

Holley carburetors are the most popular and trouble-free variety on the market. Because they consist of few moving parts, wear is not a big factor. Holley carburetors also have the reputation for b... Read More »