basic math says the injectors will support 986whp in your case, though youll probably run out of lpfp before then (not that 100% duty cycle is good, or anything, but...)
"floaty" is a product of no belts in the tread center and a soft sidewall, it isnt something you can align out.
They drive far better at 16-18psi then they do at 30.
Meth tank and injector would skip the E and negate the need for bigger injectors and easily put you past 600, but it would be a constant maintenance/fill thing.
The stock heads dont flow well enough to benefit much from cams at rpm limits a stock engine will live at, + the extraordinary expense...
I have 6x of the lightweight 23+ forged supra wheels in good condition.
4 rears and 2 fronts
Dismounted and ready to ship
325/ea rears and 225/ea fronts. Located in Columbus, OH
Mid boost on pure 800 flex tune. E70, just rolling into it. Probably hit a 5.99 with some effort and better fuel (85) especially not going uphill 😆. Trans isnt happy but cooperates until 6th.