OK, I won't start shit, but I have to disagree with him politely... I think Honda motors are pretty damn strong... I accidently ran 15 psi with an air fuel ratio so lean it dropped to the last red bar on my gauge, and didnt fuck a damn thing up... Not saying its smart but it was a pretty good accidental test that Id never do again... 15 psi from a 60mph (third gear) to about 130 mph (in fifth) at 100 % throttle the entire time, and the motor still runs as hard as ever..... Didnt even foul a plug.... 20 psi on a PROPERLY built motor with a safe a/f ratio, will barely tickle it....