Originally Posted by jbrow1

Thanks for the info. I read some more in this thread and found that was what happened.

Think I found the problem with my buddies 7 port that's been having problems. Looks like the idle gap is way to small so I'm guessing the low is way lean and the high way rich. The black on top of the piston kind of says that's the answer too. So I think I'll get this ready for him so we can see what the go's really do. If they are what everybody says I'll have to decide between a 5 port or a 7 port.. What's everybody seem to like the best?