E85 is a good tuning medium
People still seem to be pushing the Stock long block in the Supra.
Here is a completely stock unopened motor, even stock cams.
Dynoed 1043whp 808tq with a gt47-80 @ 35+ psi
previously dynoed 970whp 829tq @ 33 psi with spark blow out
and already driven it 4+k miles with 950+whp
Specs
Stock long block
GT47-80 Tuned by Mike Angel
HKS V-Pro
Virtual Works Intake Manifold
ID2000 Injectors
Tial 44mm Wastegate
RPS Carbon Carbon Clutch
HKS Titanium exhaust
Tuned on E85
[flash=480,385,0]http://www.youtube.com/v/YnS-nT6o4xA[/flash]