I am in the process of building a 1200 blaster. It will be a Yamaha 1100 bored to 84mm, GroupK type 2 porting, with mikuni 44mm 8052 R-carbs, shaved head to 165 psi, bypass mod/dried pipe, V-force III reeds, Riva intake manifold, Riva reed spacer, primer kit, Riva cdi with adjustable rev...