I've got a proven engine formula thats good for
410 at 8500rpm but it needs some work to make it street friendly.
That was with a air resurch unit @ 20 lbs boost on a blow through.
The plan is for a tube chassis car that basically uses the stock firewall
and floor boards to behind the front seat, from there on the car is all fab-ed with factory tin hanging off of it.
Helped put one together that was similar, wet with driver it weighed 2950.
I love a good challenge.