Wait, hold up a second....... The 2JZGE can't pull a 1000 hp on stock internals. That's just crazy. 400 to 450 is about the max. There are 2JZ's pulling over a 1000 hp, but they have custom forged bottom ends and drivetrains. The Supra's 2JZGTE's come with forged internals and can hold up to about 500 hp. Although I've seen a few go to 600hp. I don't think they lasted very long though.
The 2JZ is a great platform to build from. Alot of the issues and blueprints have already been done, so it's fairly easy to get to whatever hp goal you have except for the archilles heal, the weak transmissions. Even with a full race built trans done by Level 10, (upgraded sprags and clutch packs, valvebody, line pressure boost, heat treated planetaries and sunshell etc. etc.) the transmission can only hold about 400-500 hp. So you have to go with the Getrag V160/V161 which is big bucks or go with something else altogether and hope it all comes together ok.
Smooth is on top of this all the way ;) He knows these cars insideout and upsidedown, Afterall he is our resident gearhead.....