I'm getting ready to install my ported intake. I have a K&N, moded end cap and CDI. My current jetting is 175 main, needle in the richest position. I've heard that I might need to go to a 180 main. We are at 1000 feet.

Thanks, Dingo

 

I didn't need to rejet after having my intake ported. I may have been a little rich to begin with however. The best thing to do is just go out and ride it and see how it feels. Its all trail and error. Every bike is different.