“My bike is a 1974 Honda XL350, side-intake, bored and stroked to 488cc with a high-compression CP piston. Honda’s cast-in-head plain-bearing cam has been replaced with a Megacycle needle-bearing unit. A Mikuni 38mm carb with K&N; filter handles the air/fuel mixing. My friend Larry Underwood has done extensive machine work in the transmission to allow more positive gear changes. Larry also did the head work, cam sprockets, needle bearings, and grafted on a vintage 185cc Honda CDI ignition. I build exhausts, so naturally the XL has one of mine.