So I've rebuilt motorcycle engines and hot rodded auto engines, but I've never really done performance upgrades to a motorcycle engine besides bore jobs.
So are the same sort of internal upgrades applicable between the two?
Three angle valve job.
Intake and head porting/polishing.
Edged and balanced crankshaft.
Upgrading piston, rods, and crank to forged/shot-peened/cryo.
Enlarged valves and pistons.
Agressive cam timing.
What have you guys done and what's the biggest payoff you've seen.