If you are strictly looking for a drag racing blower than the v20 would be the way to go. The street warrior that sees some track time will be fine in a V3 or V7 case. There is actually quite a bit more to it than that but I don't want to hijack the post too much. I'll put together a blog post on the differences if you or anyone else would like @85rkyboby ?? Let me know@84Ttop So would I be more in the market for one of the bigger V20's series?