Getting the most out of a low comp 440

RustyRatRod said

Mopar has not held the heads I have. They were milled according to Don Dulmage's book. They were milled so much that they felt fragile. Because they WERE. I think they had been milled approaching 1/4" if I remember right.

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I want that dang book!

Did he die? Can't get ahold of him.

Call me dense, but I don't exactly follow what you're saying. Mopar hasn't held them?

I've heard of 452s being miller up to .120". I won't likely go that far.