I've have done around 30 idle to wot pulls between racing and fine tuning my MPT 93 performance race tune and I have 3.73 gears.
No problems here thus far.
The automatic trans
will hold 600 rwhp. I think you might have awhile before you have to worry about the trans
FYI I always chirp the 1-2 shift and depending on the road surface and weather, the 2-3 shift also.
I'm even on the stock drive shaft.