[Bob In Ct]

Brent:
Get the book "Super Tuning and Modifying Holley Carburetors". It goes from basic concepts to high end stuff. If you read it you'll be one of the few who really understand accelerator pumps, power valves and the rest.

By the way, letting more air into the manifold will increase the RPM in the same way opening the throttle does, except the resulting mixture will be leaner since the extra air did not go through the carburetor. Also, be careful about adding HP (high RPM) at the expense of low end torque!

Bob