My car was trapping 109-108 this last weekend for some odd reason, best trap before that was 106.8mph, and my car was dyno'd at 298rwhp before I owned it, all I have done is changed exhausts :/. As for top end wiggle, be a man, bite your lip, and give er' tits! I run 265 wide up front with my slicks, My car is shaking and going everywhere on the top end!
My 60s were very similar to when I cut my 106 mph passes, within a few hundredths. Nothing has changed, same shift points etc, it's confusing me too lol.
Just confused as to why my car was trapping 3mph more than last time with no extra mods and very similar ET and 60 times, and I was using same shift points :/