What to do...

To put your stall speed into perspective......

When I had my car running 10’s with a 9.7:1 906 headed 440 running a UD roller that was 259/264-108....... 4.56 gears and 29.5” bias slicks....... the converter would flash to 5300.
Shift about 6400, through the lights about 67-6800.

If it really hooked, which def wasn’t guaranteed with my old SS springs, it would 60’ 1.46-1.50...... but there were also a lot of 1.51-1.56 60’s in there as well.

If I had that combo at 5000’, I can see where it would have needed more stall.

My stock 906 headed 383 used a converter with 5400 stall.

The converter in my friends stocker GTO was 5500(1.50 60’ at 3650lbs, 406ci with heads that flow 212).

But...... you’re chipping away at it:thumbsup: