What's wrong with 300-400 r.p.m. increase for about an hours work?!!?

Some of you guys make me laugh...

I notice that it's the ones that don't have the confidence in their abilities that protest the most... These sort of threads bring out the same nay-sayers every time.

It's a (relatively ) cheap Chinese engine...not a collectors item...

Some people like to tinker...some people are just scared to try anything different.

SpinnerRow...the above comments are not directed at you...300-400 r.p.m. is a decent increase for what little you did...IMO you should be proud and happy with the results...