Shelby Cobra 427 '67 720 HP, used to win the 1-make race (and many others, most of the US hall)
Fully modified (except rigidy roll cage thing) with SuperCharger, stock tires, no wing, no nitro. It is still a monster, but i think it handles better. It works well as a b-spec as well. You could make it better with better tires, and by messing around with the ballast
i got these originally off the GT4Planet site, but used them very succesfully
Brakes
Brake Balance 15 18
Suspension
Spring 3.6 13.5
Height 83 86
Bound 2 4
Rebound 5 7
Camber 2.3 0.7
Toe 0 -1
Stabilizer 7 3
Transmission
Final gear ratio 3.540 (stock?)
Autoset 14
Driving Aids
ASM Under 0
ASM Over 0
TCS 5
LSD
Initial Torque 5
Acel. 55
Decel. 15
Ballast
Ballast Wieght 0
F/R 0