Where do i go next

I need some direction on what to do next...

1994 Z28 Auto
LT1 383 10.5:1 Comp
Stock heads with 2.02/1.60 Valves
Erson Cam: 224/232 @ .050
BBK Shorty Ceramic Headers.
No emissions (thank god)
30# injectors
Stock intake manifold.

Where in gods name should i go from here...My whole goal in this project is to get as much horsepower out of this engine as ungodly possible without going forced induction:frustrated:

What bottom end do you have? 4340 forged goodies? 4 bolt mains? Forged pistons? Roller rockers? Dyno tune. N2O depending on your bottom end... All comes down to what you want to do with the car and how deep your pockets are?