Somebody with some experience please help me. So when I first got this machine about 2 months ago she was fast as can be, 75-80 no problem around 7500 rpm’s, been noticing lately she is down on power and only revs to about 6300, I checked fuel pressure and noticed it was down and narrowed it down to the regulator so I replaced it and now it’s back to 43 where it should be but didn’t help my problem, installed a new belt thinking it would help but no sadly. Could it still be a fueling issue or something else I’m looking over? Something with my clutch? Tps is 100 percent. I’m at wits end.