Carl, I agree. A day with a carbide burr will go a long way on these old heads. Some say it doesn't matter just cram more air in it. The Physicist in me says it matters even more because your moving more air and the restrictions will compound. More boost with less flow means higher intake air temperatures the enemy of boost. JMHO.
Last edited by Peggy M; 06/30/2025 10:07 PM. Reason: remove quote; not necessary ;)
