I have posted here that I was having problems with my GO 3-port Race tuning it. I could get top end but no low end or the opposite. If I did get it in the middle it would run like complete Dog Crap!!! Well I had a JP-1 pipe on it the whole time and was told to put a GO 0801 on it instead..... WOW That thing SCREAMED!! Never had it run like that before. Now I can see the power all you guys are talking about on the 3-port! I just could not believe the pipe could to that much difference. And before someone says well maybe you tuned it right this time or something I just want to say I never even touched the needles after I installed the pipe and it ran that way. All I did after about 2 tanks was lean out the LSN about 2 hours and that was it. Running 225 degrees