60 FOOT TIMES
The AMX is ladder bars. It works well. My Dakota is 4 link. I can't wait to finish the Dakota.
I will guess that moving the 2 step Rpm up is unlikely to have a positive effect on your 60 foot using the brake.
Might possibly make the 60 foot less consistent, if anything.
I have said this forever, but if the convertor is correct for the car, even leaving off the foot is unlikely to make much if any of a difference in 60 foot time.
It didn’t on a previous combo of mine that made very similar power to what you are making.
All I was able to to do moving the chip around was either deal with huge wheel stands, or blow the tires off, until I found a comfy spot, as I recall it was around 3900 or so, that worked consistently, moderate wheel stand/ repeatability.
At the end of the day, assuming the 60 is consistent, lower or raising the chip is only going to effect reaction time, rarely 60 foot time.
That car of mine was 500 pounds heavier than yours is. Went 1.34 off the foot or the brake, on a small tire, often I used both ways on the same day racing on a 400 tree index race, and a footbrake bracket race at a series I used to chase points in.