:thumbsup: ran the bike sat. night at springhill (where bigboy runs)...it was awesome!!...first pass it left so hard it nearly threw me off the back...lol...then, after i got used to it, i dialed in at 4.2 and had a best time of 4.1 (300 ft. dirt drags)...not bad for a lil' ole 4 mill running against a 10 mill on nitrous, a 14 mill on nitrous, and an 18 mill...i was right in every race (except the first "pro tree" run when i was "snoozing" at the starting line)...the best time i saw was 3.9 sec by the 14 mill and, the best i could tell, my nearly 79 mph at the finish line was the top speed with the others around 73 to 74....thing about it, there surely is more to gain by me getting seat time and probably will need a small jet change for the altitude difference...i may also try a front sprocket change and launching in 2nd...this thing really hauls ass!! just like you said...i believe 3.8 to 3.9 is a realistic expectation....couldn't be happier...dbr