Hey all. I have a few Q's. Can a stock manifold be ported out for any power gains? If so, what all can be changed and does someone like YAW do this? I would attempt to port it myself if i knew what i can and cant do, but im no manifold scientist. Also, I want to stick with the Nikki carb and have some things done to it. What can be expected for HP gains from complete Nikki carb and manifold modifications? Thanks all, Rotary-Rex

 

Go read Yaws site. He talks about exactly what your asking.