I have a maxi with the twisted out intake for the sha carb. I also got the "k&n" mesh air filter. That filter is restricting my air too much. I've downjetted and still itbogs out at like 25 mph. But when I take thefilter off I'm doing atleast 35. I was jw if anyone else is having an issue with that setup? And which air filter you guys would suggest is the best one for the sha.