Originally Posted by
computermonkey
That is pretty good. So far mine is turning a APC 18x8 at 8k. Mine had a China made carb on it.
How much run time do you have on yours.
I agree with CM....8200 on an 18x10 is fine on muffler.
My Syssa 180HP runs similar numbers on an 18x10 or slightly less (100rpm?).