Who has done a 5.7 with a833 4 speed Overdrive ?

The aluminum cased A833 is fine for all sub 430 hp cars like mine, on street tires.
In my case, I had a machine shop bore the front pin-hole out and press in a steel bushing, just cuz.
But in about 2004/05 I stopped using those od boxes, on account of the attrition..
I switched to the Commando, and a GVod behind it; and I use the GV as a splitter.
the ratios are ;
3.09-1.92-1.40-1.09(3od)-.78 od. splits of; .62-.73-.78-.72.. compared to the od-box at
3.09---1.67---1.00- .73od ........... splits of; .54---.60---.73
At that time I also switched to using a Passon alloy box.

If you run 4.30s for racing, your roadgears will be
13.29-7.18-4.30; and 5000@93, 6000@113, 6500@122 ..Whereas for me, with 3.55s;
10.97-8.56-6.82-5.32, and I hit 93 in Second-over@ 6160; splits of .78-.80-.78
But my car, besides the one successful Eighth mile run, is exclusively street driven.

The 833od/4.30s might cruise at 65= 2640
to the Commando/3.55s/GV .. at 65= 2240

Jus saying.