Anyone used ivans jet kit?

[Raider58]

Has anyone used Ivans jet kit and if so how well did it work? ivansperformanceproducts.com.

[spike13]

i installed ivans kit myself during a valve adjustment. went in easy and made a big difference in throttle response. i run l.a. choppers mufflers and had some after-fire before jetting and that is gone. i will say i noticed a slight drop in fuel economy but that may be my own fault i have a problem twisting the throttle too much. i would do it again given the chance.