Token, you are crazy not to think about the B5. I've purchased 2 now and they are very similar in power to vspec(i think faster) and to me the powerband feels very similar. Bottom line is if you are looking for vspec replacement I'd go B5 and for $200 you can't beat them.

This year I've used 3 different engines all brand new. A speed, FMS and B5 and based on performance alone I'll be sticking to the B5 or maybe a new B6 let alone value.

The B5 has been the easiest to break in and so far has run great. I'm about 3 gallons in so far. I also ran this at the Nats in my buggy without issue, not one flame out all weekend.

Jay W