Just got a new 3 port from Russ, the carb on the front has a GO symbol in color this carb is nice. I havent seen this 1 yet, not shure which needles it has I dont want to take the shrink wrap off it till it gets to Powerhouse.Has anyone had the 3 and 5 or the 3 and 7 ports to tell me if longevity is the same for all the race .21's? I wonder because we all know that the 5 and 7 ports are a bitch to break in but the 3 is easier. So does that mean that it wont last as long? I know in theory it wouldnt last as long but I could be wrong.