Rebuild 904 or swap for 727?

CudaFactHackJob said
They just waste my time with all their dumb ideas they read about online. I mostly do street trannys. I ask them their hp level and rpm shift point and give them a price. When they start telling me what they want in it....I say, "I think you're looking for the AAMCO experience."

I found this online. Notice the engine rpm that would fail a stock drum if the sprag were failed. Very easy to blow up.
Tcs makes a lot of the aftermarket drums and performance trans parts on the market.