well so far I have 5 tanks on both engines race prep and full mod, running them with AE2035 pipes buggy is very stout and was getting 11.5 mins and I havent "leaned" on it yet very much. now the truggy seems to not have nearly as much punch on the bottom but has a good top end. so I think I will be putting the full mod in the buggy and the race prep in the truggy....again this is with the AE2035 pipe so I will do some testing and go from their.

Ryan