Ive got a 93 gsxr750 with an rf900 engine. (936cc) Just built this over the winter, runs extremely well, 133hp on the dyno. Rf engine with the 750 head, cams, 38mm carbs. Dynatec 2000 ign system and coils, d and d full exhaust, ported head with +1mm intake valves, slotted cam sprockets, stage 3 jetk...