This Dyno chart was made on a DYNOJET 150 on my 96 Vulcan Classic which has had the following mods: Megacycle Cams, R&D Valve Springs, Eldobrock QSII carb, 9" K&N filter, 98 model carb to filter boot, heads shaved 10 thousands. Pretty flat torque curve, good HP and torque. Close enough to what I am told the ones that have the piston kits that I am not sure I want to spend the $$ for the pistons and install.