RustyRatRod said

Maybe. Give me some more details. Cam specs, cranking compression number if you have it. Where is initial timing and total timing and when (RPM) does it get total timing? What intake manifold? If it's a dual plane, did you block the heat cross over?

In short, anything you can do to make the cooling system more efficient and to cool the intake charge will help a lot. Each individual step I took with mine helped. If I had to point to one step that helped the most, it was the thermostat.

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