1. no stock supra will put down 390hp. the highest hp stock supra is the tt mkiv:
320 hp @5600 rpm and 315 lb.ft @4000 rpm
it took me less then a minute to google that btw.
2. bpu is basiclly intake, exhaust, maybe a boost controller. its all opinionated.
3. single conversion>twins
4. now are you referring to the twins on a 1jz or 2jz?
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88 N/A w/ 5spd - stock - not running, bhg
87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat
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