727 3rd gear feels more like a down shift

AJ/FormS said
720hp/3600#=.200 P/W which is good for 137ishMPH, at under 10; so you're right on target; good luck.

Judging by your current numbers (posts 40/41), it would seem there's room for improvement. If your foot was in the carb, the trapspeed is down some 6 or 7 mph so it could very well be that the trans is sucking up some power.
Just in case you might be thinking I know anything about racing, tho, I don't. I just read a lotta books and stuff,plus I'm old,lol. Naw, I'm just a 64 yr old street maniac, with 400ish hp.But she traps about right, going 93 in the 1/8th with no tune whatsoever. I drove to the track, ran the number, and parked it. Then spent the day in the bleachers with my 24 yr old son.Then drove home; Good times.

=====
Being the first year for both the car and myself, there's been steady improvement. I expect to find a couple more tenths and a few more MPH next year. I'm good to run 10.0 so some room to play.
The car will be losing about 120 Lbs over the course of the winter, which is also going to help. Track elevation is 1800' and air has usually been around 3500 + so the guys with weather stations say.
Today I swapped out the old shift cable and that bugger was stiff overall and worse in certain spots. That along with the loose shift arm likely created the same problem that Dgibby started this thread over.
Will add some fuel to the car (drained for winter) tomorrow, up with the back wheels and run in through the gears. If it bangs into high gear then I'll know it's a fix. Before this problem started when going into 3rd it was a instant solid shift. I suspect that with the reverse manual valve body the shift cable adjustment has to be absolutely dead on otherwise a problem like this could show up. We'll find out.. Stay tuned.

New cable - routes around the right side - no more burnt cable on this Mopar.