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Posted by Kaegi [24.16.253.154] on Thursday, July 12, 2012 at 12:25:21 :
In Reply to: tolerance on dodge 1947 pw cylinder head posted by Justin [71.59.91.52] on Thursday, July 12, 2012 at 08:53:37 :
I have shaved as amuch as .075 off to raise compression. that and a better cam makes a huge difference in power. the stock compression ratios on the early engines is designed to 70 octane fuel. so upping the compression alone wakes them up a bit on modern fuels.