Ok, so I went today to a big buck bash for Top dragster to see If I could do some testing, Long story short, We enter the shoot out. Didn't want to mess with the tune up for a $8000.00 race. DA= 4400' ..88 degrees, track temp 120, Humidity 32%. The car falls off .12 from last week (DA= 3800') but the thing that blew me away is the 2.5 MPH drop. Since the beginning of the year our MPH has been dropping but the ET has been "relatively" constant. We started out at just under 171MPH and today we were 167.8 to 168.2 with a small head wind (5-7 MPH). Went 4 rounds at 7.85 only to break in the staging lanes for 5th round (sheered the teeth off the flywheel). We won $1,200.00 but now I'm wondering if I should send in the converter. The MPH we are running seems low. :?