OK guys had a chance to run my HT FMS at the track last weekend.. just for about 30min to 45min... this was right after break in and i was taking it easy... with the stock HB clutch in the buggy all i can say this thing screams... was not able to get the top end performance down the stretch because it was just a lil to early to stretch it out.. on the in field it was great and so far its worth it... love the motor.. my first HT and its great.... gonna put more fuel through it this weekend... maybe try a different pipe// i was running 9901 and the 41001 header.. good combo so far...