What did he put down last year? Were you at the last Rocktober Fest,or an event earlier in the year. From my understanding of dyno's, weather will have an effect on the numbers produced. Some good some bad. So if you did not have almost identicle weather conditions, you would see a difference in performance...again, both good or bad. With the last time you were there what did he have on his truck then? I've spoken to several different people about stacking chips in these dodges, and while it does work, and help to an extent, it also cause's issues. A few weeks ago while I was in Maryland at a NHRDA event, one of the guys actually took off his TST stack, because it was not working correctly, and causing his truck to not run properly. TI Dyno has also noticed on the trucks when they have stacked chips, that when they run just 1 of them, the truck will actually produce a better number. I'm not sure why this is, I'm not a dyno expert or event a chip expert. Maybe there is an issue with one of the chips, and it's just not performing as well as it should? Again I'm not an expert, and this is just my 2 cents.
