Yes, my pistons are flat top too. I can not remember how much the head was shaved and I can not find the cam specs. I have all of the paper work around here somewhere. I think I stuck with stock valve size but not sure.

Have the head done. Small block Chevy valves will work. Some use a 0.100 + stem length. 1.87-1.92 intake & 1.60 exhaust. You may have to enlarge the spring seat. The stock stamped steel rockers are plenty strong for the street. LINK

Picture from when I last had mine opened up in 2008. It doesn't look that nice now. frown
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