aero nut
my ryobi's piston goes past the exhaust port bottom should I drop the port by grinding
it down a little?even or slightly lower than the piston at bottom dead center?
this would give a few more degrees of duration correct?
how about sharing your exhaust timing from top dead center to port openingso I can compare
it with mine Iknow if I grind on the top of the port it will change the exhaust timing,I will if I have to
but it would be easyer if i had a starting point .8000+ rpm's is pretty darn good i wouldnt mind matching that