I am not any sort of expert on this (and could be way off base) I couple of things come to mind looking at the A/F. the 45 pilots will bring up the bottom end but will richen across the board as well (they are always drinking). The rich/lean/rich blimp has got me thinking may be slide speed and or shimming is causing that. What is in there?
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
