I have milled edelbrock perf RPM head.
I did the test on edel. head to know the
volume of the chamber. Amazingly it as
63-64 cc. (Maybe 60 cc is with bigger
valves 2.02.). It also bring compresion
from 8.9:1 to 9.05:1. I had to perform
a heavy milling to bring compression
to 10:1 (dont remember how much however)
hope this help
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