I'm used to riding old Harley's, pretty new to these higher RPM machines, not really sure if its a no power and high rpm's or just low geared. Little history, I got the bike with head off and already rebuilt, I pulled cylinders off because it had been sitting quite a while, so I had to bore cylinders because for whatever reason couldn't find rings that size to re ring it, bought a big bore kit put it together, just don't know why it doesn't seem to have the power I think it should have, I'm racing it in fourth gear on a residential street, don't have right adapter for compression gage. Timing, valve and ignition seem right on, I have the old bottle top kein carbs I've went thru. Doesn't seem to be starving for fuel, it starts right up really easy, when I twist the throttle, it revs up strong. Don't know if jets or needle position would have any effect from my experience I would think no. Any ideas are appreciated