Can someone help me estimate my HP

What HP do you think the motor I am planing on building will have

Block-318
Heads-Not sure what kind but not aluminum
10-1 comparison
Flat Top positions
Big Mutha Thumpr Cam
High rise intake
Not sure carb yet but a 4bbr
Duel cool air induction
3in Flow Masters

Flat top positions? Is that in the Kama sutra book?
I'd use a 3/4 cam, they are 25% cheaper than a full cam. As for horse power you should be somewhere between 1 and 750 horses