so this winter i am doing a frame up build, right now bike is stock with a set of fmf gold series fattys on it that i picked up cheap..going to be doing a 4mil long rod with a play/dune port. looking for a reliable 65hp machine, had my mind set on slp pipes due to the torque they make. but i recently seen a dyno chart on here and the pro circuits made only a few ftlbs less torque and i think 2hp more peak with a bit longer power band. has got me re thinking my choice, opinions? thanks