Chambersize and comp (stock heads)? and mill??

[Rev]

You need to know what the deck height is in your engine and the compressed thickness of the head gasket is to really know what the static compression is. The "deck height" is the measurement of how far down in the bore the piston is at TDC. If you don't know these measurements, then static compression is just a guess.

Rev

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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.