289 heads
I have a 66 289+040 and I also have a set of 69 351 heads I want to put on it. I know about bolt hole differences and got that covered,My question is how much can I mill the 351 heads safely and can they ( yes I know its a chevy trick) be angle milled for any gain. the engine has flatops ib it and what the guy calls a 3/4 cam( it was built a few years ago)
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agawam performance owner
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