I'm not real impressed with the shop that machined my block. Didn't fit the cam, didn't install oil shaft bushing and I don't like how they decked it. I told them 0 deck, so they take .002 off one side and .010 off the other to get 0 deck, but they left what looks like rust in the deck. It's smooth to the touch, but not sure it will seal a cometic. Can I use a composite gasket with 11.5:1 on a 511? I'll get some pics later. pics added