Howd it go? Im just finding this forum...Here in bermuda we get these up to 80mph+... (with a lot of tuning!) De restricting inside the muffler..larger downpipe...larger carb ie 24mm+..larger cylinder ie 100cc.... carbon fiber reeds, one petal... better cdi..sprockets..the list goes on. Google surinam racing..they drag race these old bikes! Im rebuilding a 1985 v80...engine is completed..(not my work) spray up next!