What kind of power

355 block
Holly 600cfm carb
Carb Plate Nitrious System 75hp
Holley intake 1000-6500
Stock heads
Crane camshaft http://www.cranecams.com/?show=brows...tType=camshaft
9:1 compression
Stock HEI ignition
Forged rods and Pistons
2500 Stall
Turbo350
12bolt rearend
3:73 gears in the rear

What kind of power do you think i'll be looking at on the motor at the fly wheel.

The weak link in your quest for power will be the stock heads. Go through this list of 108 dyno tests and pick out the 350/355 builds. You'll see that the combinations making the good numbers are using aftermarket heads. Note also that these are all street motor builds using reasonable compression ratio...
http://www.ryanscarpage.50megs.com/combos1.html