I was told it ran great. I built the bottom end but ended up letting him use it and he installed the cam and heads. He claims it ran in the 7's in the 8th in his truck. I am just confused as to why it revs retarded but not with the timing where it should be. I ran it at the track with the timing set the normal and with having to shift at 4300 rpm it ran a 9 flat. With the timing retarded where it will rev it won't get into the 9's. I was thinking valve springs or cam being off but I would think it would have problems no matter where the timing was set if it was one of these??????????? If all else fails I will breal it down in February and build it myself from the bottom up but would love to be able to enjoy it before then.