Maybe your trans is slipping? What is your rpms at the traps. My car traps 119 and I am at 5800 rpm's with a nonlockup using 28" tires. Also, what is your 1/8th mile ET and mph?
Don,
I see you are locking the converter at 80 mph.
Maybe that bogged the motor slightly and it had to recover. I used to loose as much as 4 mph after locking my converter to early. I used to lock it at 90ish, with aluminum heads and cam. With your bad azz 60ft, and possibly an early lock up, I can see a slight mph loss. We locked another ride up a hair early (87mph) at the Norwalk track rental, and lost 2 tenths as well. I believe locking the converter and putting more load on the motor will raise egt`s as well. Brian Hofer (saw you at Jim Piper`s when I dropped off his trans)
brain
it could be locking around 85, its in the chip
i added more fuel, threw the chip, with the ac trick ??
but have not run it yet,
any other thoughts, on what to try,
thanks