Stalling up an auto isn't doing it much good (even tho I like doing it occasionally).
mx83toy, there is a shop in Adelaide with new stall convertors for our A340E gearboxes that increase stall RPM and are apparently 'tunable' between normal gearchanges and, as they put it "dash cracking" gearchanges. The conversion also removes the farting sound between gears that we all get after changing exhaust systems.
It's about $850 and includes an automatic transmission cooler, full flush of old fluid, new fluid, and a new torque convertor.
If you're interested (or anyone else with a 1JZ/1UZ auto) I'll post the link.
A group buy might be interesting... I'm so tempted at the moment.