How much horsepower should I expect?

Hi, I am almost finished building a small block 408 stroker engine. I was wondering about how much horsepower and tq I should Expect to have out of it.

It has Aluminum Edelbrock performer rpm heads w/2.02's and 1.60's with pocket porting and are port matched to the edelbrock performer rpm air gap intake manifold it has.
I expect it to have around 10-10.25:1 compression
I have a nice 750 edelbrock to go on it
It has block hugger shorty headers w/ 2.5" collectors
Will be flowing through dual 2.5" exhausts with super 40's and an H pipe
It has a comp cams solid roller 268 cam kit, and it's pushing through harland sharp roller rockers.
it has KB IC745 pistons w/ moly rings and Eagle crank and I beam rods. *(how good are these rods??)*

What do you guys think? 400, 450, 500, more?
What difference would I expect if it had a street porting job done vs. just pocket porting?

Thank you,
-ANTHONY
i say mid 400 sounds respectable.