440 build 500+ hp build

Hi

First off, Merry Christmas!

This is a budget, what is there build, that hopefully will make the owner happy. If you have any suggestions about changes that can make it better, please let me know.
Parts list:
- 440 RB 4,360" bore block
- 440 steel crank .020" under
- 6.760" H beam rods with ARP bolts
- Icon forged 4,360 flat top pistons with moly rings (.0018" down the hole)
- Edelbrock E street heads 75cc (mild port work + 3 angle valve job on valves and seats + 60 degrees back cut on valves)
- Mancini Racing cross ram intake with 2x 600cfm carbs
- Mancini Racing 1,6 ratio adjustable rockers
- Comp Cams 21-232-4 solid flat tappet cam with lifters and springs kit (244/252@.050 .520/.540" lift, 110lsa)
- Full MSD ignition with 6al digital box and distributor
Compression ratio will be just under 11:1
Rotating assembly is statically and dynamically balanced.

Any guesses on potential power? Frankly I am hoping for around 550hp but perhaps im a bit too optimistic. What do you guys think? Any guesses what I can expect out of it?
Did any of you guys build something similar? What was your experience?

I have ported and flowed 452 heads (275cfm @ .600" lift) also, planned to use them initially but Edelbrocks came up for cheap and I guess it will be easier with aluminium heads to avoid pinging. Also whole combo will be lighter.

Car has 727 trans that I already worked on, its all new with upgraded internals, billet servos etc. We will use Hays Twister 3200-3600 stall coverter because we have it and it is brand new. Rear axle is 3.23 a body 8.75" with sure grip (3.55 would be better I guess).

Thank you for your input.