I ran one of these last season, and in my buggies it ran pretty well (talking about power here), but in truggy obviously it was very weak. It tunes like a dream though, you set it and forget it. It's not going to be a super ballistic mill, but it's very good for club racing IMHO. Also it's not going to last 10+ gallons like a higher end mill. It likes O.S. 8s in my experience with them, and they run good with an 053 pipe. Also the RB 2045 ran good on it, but that's just what came with mine when I bought it, I think it's safe to say that it wouldn't be worth it. Hope I helped you out!

-Gary