318 running with low power

318 running with low power - dyno

krazykuda said
I would match the intake with what kind of carb that you are going to run.

You loose flow energy when you use adapters.

The Action Plus is made for a spreadbore carb, and has a power band from idle - 6000 RPM.

The Stealth is made for a square bore carb and has a power band from idle - 6800 RPM.

I like wiand dual planes over the performer. They have a wider RPM range and wiand makes a good casting. I've seen less core shift on wiand and offy intakes than I've seen on Edelbrock.

Also when you use a dual plane intake, use a split gasket to keep the stronger pulse all the way to the carburetor for stronger off line performance.

I should have been clearer. I plan on using the EQ heads drilled for LA intakes with stock magnum valves.

I thought the OP had an action plus with an adapter for his squarebore. That was the reason for bringing up the thermoquad.

I take it that the action plus has 318 sized runners that can be ground to match to a 360 size.

In any case, I agree that timing needs to be looked at first.