SGP went mid 10s with a 5spd years ago, they have an auto street car, full weight that is faster then 10.0s but wont post a slip due to street racing for serious cash.
Z1 has the highest rwhp for no good dyno chart. Followed by sgp making 845rwhp for a guy in Ohio.
When are you going to build your 1000rwhp dynoqueen supra? I see you keep posting about it on supraforums but haven't seen anything other then a picture of parts. :)