Intake, bypass, and exhaust timing are all very mild on this engine, and the carb is tiny. If you want more power, you'll need to modify these parameters, but you'll lose some low end torque and flexibility. Why not just spend the money and buy a .46FX, or a Thunder Tiger .46 Pro, an Irvine .46, a GMS .47, or some other more powerful engine? Keep the FP for doing what it does very well - hauling trainers around - and step up to a more capable engine.