With similar mods from what I saw. The first things I will do is check the timing and try another boost gauge. The previous owner told me he adjusted the timing to be more conservative and I think my Autometer boost gauge is off. Which way should I move the timing, I have seen conflicting info? If stock is 15 + or - 2 should I advance it if it is lower than 13? Maybe try 17? On some of the dynos I saw people were runing with the timing retarded 3 degrees from stock, where does this put them? Thanks