The first thing I do to my engines is a K&N filter and get rid of the tubes as much as possible. Then it might be the exaust restrictions. The name of the game is FLOW ! Even a stock engine likes to BREATH.
Everything and anything else comes after this change.
Engine Breath should not be wasted on the young or faint of heart !
'97 VN1500 91 Cubes Of Custom CLASSIC
Vance & Hine 2to1
engine, forks, ignition & carb mod's
WebCam cam & rockers hard weld & grind
NEW TOP END, NO LOOKS ALL GO GO
Maxx intake manifold system & super G carb 44mm