Anonymous-0

Well-known Member
We put a Murphy's head,rockers and manifold on our 51'G. WOW!What a difference. Cold compression is 150 with .125 over high dome pistons. Question is anyone else running similar and if so, how much advance ? (from the flywheel register mark)Running 110 octane, so it's not "pinging". P.S. yes I'm looking for a dyno!
 

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