390 H.P numbers?

Hey guys, I am just curious what my H.P gains are with this 390 I have built. Here are the specs.

68 Block
1969 428 CJ Intake
1969 428 CJ Water Pump
Mallorally Promaster Ignition Coil
Edelbrock 650 CFM Carb 4V
Ford 427 CJ Mechanical Cam

Any Ideas?

Forgot to add, I added 390 GT heads as well

so basiccally you have created a 428 cj type engine and by installing the smaller carb probably only killed off 50- 80 HP

Sweet. Since the 428 had 410 HP, and 450 with better headers, im probably close to 350HP since I have custom headers and a true dual exhaust with Flowmaster mufflers. Thanks

428 cj 335 hp
427 4v 410
427 8v 425

shoot the water pump is worth what? 1/2 hp?