Go simple.
forged wheels = less weight
manual seats = less weight
2 piece rotors 6/4 pistons calipers = less weight
coilovers/performance suspension (Pedders/Pfadt) = less weight
electric steering = less weight
LS7 = more power
3.73 gearing = more performance
This is very doable.
Maybe lose 150 lbs. off a 1SS (Huh, Number 3)
4.0 0-60
12.0 1/4 mile
110' 60-0
1.0 G
75.0 Slalom
$42,000.
Any comments Number 3? I respect your thoughts!