do i need to change my cams or anything else
By Anon.
These components are designed to bolt straight in place of the original cylinders and pistons for any machine you select from our fit guide. There's no need for cams or any other parts, Still, you WILL want to change fuel delivery, that's for sure, a tune is required if you expect your bike to run correctly. Depending on your situation, we recommend the Vance & Hines FP4 if you want to avoid a trip to the dyno. Or, if you have a technician you trust, we recommend a Power Vision 4 tuner to get the best possible engine performance. The latter, while more time consuming and costly, is the best way to get a custom map built that'll get you all the power possible from this big bore kit.