Good info Performance Only. I did some measuring with a simple angle finder and every cylinder seem to be in 45 degree angle. I know it´s not accurate, but I measured many times and I´m pretty sure I would have noticed if it had been out of spec more than half a degree. I also did try fitting old head gaskets, and the cylinders seem to be in right places in relation to bolt holes and dowel pin holes. Overall I don´t think the machining can be so much wrong that it would make a big difference in sonic numbers.

So there is not much that I can do except to keep the bore smaller than I planned, and maybe move cyl #1 maybe .020” or so. I´m not going to put sleeves to a new block that I paid full price of. These blocks are supposed to go 4.22” bore and handle 750+ hp, and I don´t think this block is good for it. Although it will screw up my schedule, I think I´m going to ask for another block. I just hope I don´t end up with another bad one like moparmacka.