[RotorDad]

Interesting offer. Are you asking him to try another dyno other than a dynapack or just a a different location to validate his times? 540hp in a 2900 lb car should run in the area of 10.2 at 133 mph. Assuming that your customers car only weighed 2400 lbs with 370 hp should show a 10.8 at 125 mph. I also am not trying to start anything, but you are here asking for proof right. Well you listed an unknown customer car, with no real info other than 370 hp & weight reduction with some trap speed. I hate to say it but you haven't really made a good argument & no hard info was provided on your customers car. Now I may be wrong this is just my opinion. BTW there are other factors involved other than Hp & weight when at the track, which I'm positive you already know.