There are some very expensive fixtures that a few shops have for correcting lifter bores-However, I have seen more stuff screwed up than fixed -------


If your cam turns nice and free in the cam bearigs( proper size! ) you can just use a degree wheel and check out each and every lobe for timing from cam specs-if you get some that open a little early or late Isky has some offset lifters that can correct that or if its pretty far off, you can get a custom cam ground to what you need-----


If its really out of whack, throw it on Ebay/Craig list and get a different block------