Milling for compression

The head will take that much milling. I am not sure about the block. Charlie can probably answer your question. I know he has a head with more than .100 milled off......I think it was .125, but it was an accident. He had forgotten it had been milled before, I believe, and then had it milled again. It worked fine though.

I would take a guess the block can probably take a .150 cut, but that's just a guess.

You could also have the crankshaft offset ground to give a little more stroke and that would raise compression as well.