5.2/5.9 H.P build guesstimate

3000 ain't enough. Those off the shelf "3000 stall" converters need a good bit of low end grunt to actually flash to 3000.

Who changes rear end gears for one use or another?
Wasn’t off the shelf had it custom made by edge Performance, and I change gears whenever I find it necessary, trip to the drags or highway crusin.