Stall and Shift RPM Question.

Rant part 2
While I am on it,
Went to the track last night.
'Hot August Nights' at Renegade Speedway in Yakima, WA.
Had a great time.

15.45 @ 89.4 mph
15.30 @ 90.25 mph
15.05 @ 91.01 mph

Doesn't look too bad for a '75 dart more door with 2.45:1 open gears with single wheel spin issues.
I must be getting in the right direction.