How much power will a stock 904 handle

I ran JW Trans. built 904s in my Dart for years without any trans parts breaking due to outright fatigue. The few trans failures I've had were due to driveline failures first resulting in broken sprag or broken trans cases. Best numbers 11.14 @ 117 with 1.47 60' @ 3,540 lbs footbraking. Usually detuned a tenth or two. * 2.74 low gear set, reverse pattern manual valve body, 4.2 lever, the good red(?) clutches, probably had some oiling modifications & Amsoil SuperShift. Raced often, serviced 2-3 times a year and freshened every 3-4 years.