Well I really have no idea. I thought 3 & 4 were good for sure, and maybe 7. I wasn't sure about the exhaust, and I know # 5/6 are not right. Somebody even told me once not to lap valves, but I've always done it. I'm going to get the #5/6 valve re-ground, and hopefully get the head put back together tomorrow or the next day. (Unless someone points out something is definitely wrong with the others (not 5/6...I'm getting that one fixed) Then I will fill the chambers and see if anything leaks out. If anyone else has an opinion, I'd like to hear it. Thanks!