I went to the track yesterday and run my truck. My best time last year was 15.86 at 86mph, bone stock. I bought a Hypercrap and a cold air kit since then and put a 40 series flowmaster muffler on it. My best time yesterday with that was 15.70 at 85mph with a 2.3640 60ft. Then i changed my computer, it had been tuned by thunder racing and i run it again, and run a 15.49 at 88mph with a 2.33 60ft. I made another pass and run best pass of the day, 15.44 at 89mph with a 2.33 60ft. Getting a mail order tune is the only way to go.

 

Nice numbers. What were track conditions like: temp, elevation??