I just won the Amain again for the second points race in a row with the 7port in an 8T truggy. I still have brian's .25 PTM modified in the box and haven't even broke it in yet as the 7port is still screaming. Don't expect this motor to run consistently though until you get a lot of tanks through it as it has so much pinch from the factory. The only motor that has as much top end as the 7port is a $400 EB modified Vspec at our track. That motor has more bottom end as well, but I am sure if my 7port was from PTM, it might be closer on the bottom end as well. Only problem so far has been that I broke the plastic / metal sleeve connection on the carb when I tried to twist it out. A phone call and some JB weld later no problems and the motor has about 3 gallons on it now and screaming harder than ever. The carbs are very temperature sensitive though and need slight tuning throughout the day.