Ok I installed the new slide, did the leak test and there were no leaks. I have V3 reeds, FMF exhaust, Uni open filter on the carb. I tried the 400 main and 40 pilot but it was still rich when I did the plug chop. So then I went to the 380 main and the 35 pilot and its still rich. What other changes should I make, what are other ways to fine tune the carb? I read on here about setting the needle but I'm not familiar with this, could someone elaborate? It idles perfect and the bottom end is strong but breaks up on the top side when wot. Thanks for all the help so far guys.