Mark, just try a new pipe. I have alot of pipes you can try at the next race. I love my Fusion mod B3 with TKO Bearings and Novarossi carb with a B-Mods head. I just run a 086 pipe and got second at the King of the desert race with it at ET and that track has a 120ft straight and there was not a motor out there that would pull it.