What will it make?????

Ok I'm curious on what my motor will make/produce, and I've been hearing from a range of 350 to 450 HP(nice range but want a narrower scope) and I want to know what you guys think it will make.
So here are the specs.
340 (Sonic and mag tested 72/73 block came for a Cuda)
4.070 (.030 over) Forged Aluminum Pistons, flat top with two valve relief (Ross Racing)
1/16, 1/16, 3/16 Total Seal Gapless Piston Rings
3.31 Forged Crank (Eagle) with their ESP Armor on it
6.123 Forged H-Beam Rods (Eagle) with their ESP Armor on it.
Full grooved Main Bearings (Can't think off hand who made them)
Standard volume oil pump (Melling)
Milodon Road Race oil pan
Crank scraper, teflon bladed both up and down stroke (Crank-Scrapers.com, Great place!)
Hughes Stud gridle
Edelbrock Aluminum Heads (60779, closed chamber) Cleaned up no porting
Ferrea Stainless Steel Valves (2.02/1.60)
Roller Rockers (Comp Pro Mags) 1.5 ratio
Hughes Roller Lifters
Comp Roller Cam (282/290 AD, at .50 lift 231/239 .535"/.550" Lift 110/106 Lobe
Edelbrock High Volume Water pump (Aluminum)
Milodon High Volume T-Stat
Edelbrock AirGap intake
Coyles Double roller timing chain (billet gears)
MSD E-Curve Dizzy
Dougs Headers (1 5/8th)
SFI Balancer and SFI Flexplate
This is all bolted together using the Strongest ARP bolts that will bolt to the motor.
(Haven't bought a carb yet but will probably be an Edelbrock 750)