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

Plenty of cubes, decent heads and compression but the exhaust system (block huggers and flowmasters) will cost some power. Likewise the carb over a well set-up Holley. That is a really mild roller cam you have there so its going to push out some serious bottom end torque.

Peak power might make 450 with 500TQ if not more.

As for the Eagle rods, I had some but heard the horror stories so moved them on in favour of Scats. No 1st hand experience of them good or bad.