i have a 2002 harley with 150k stock except for CAI , but the supercharger is starting to make noise at idle so i bought a ported lightning supercharger and 2.93 pulley and ported TB a 4 pound lower C/L PLENUM and a tune, it should make 12-13 psi im only seing 6.5 , 7 on a cold day now so there should be an noticeable difference right ?
and can i install them my self

sorry for my bad grammer