Originally Posted By an8sec70cuda


It sucks your block has been milled so much already since you're going to be testing a few different manifolds. Having to mill the manifolds to fit the block/head combo will really hurt the resale once you find which one you like the best.



As standard course for the past 40 years I have at least 0.045" to 0.060" milled from all cylinder head intake surfaces. It eliminates all alignment and fitment issues