Need help picking 383 part

[ttjordan25]

Hello every one!

Its been a while since Ive been on here, but I decided to turn to you guys for suggestions on my task at hand. I have an 86c10 fleetside, and I'm wanting to replace the 350 with a 383 stroker. I am struggling with which route to go, meaning forged or non forged, Flat top or dished pistons. Should I go with a stroker kit or buy piece by piece... Im really wanting to get into the 500+hp range, but would like to stay on 93 octane , so im guess 10.5:1 cp?

Here's what the c10 has on it already
Early model 350 SB
Comp XE274 flat tapped cam ( thinking of moving to a retro roller)
Comp Ultra Gold 1.5 roller rockers
Edelbrock E series Alum. Heads 210cc ( part number 8085) I think
EdelBrock RPM Air gap intake
Holley 650CFM
700r4 Trans ( TCI TB and Shift Kit)
Eaton Tru-track Diff
Motive 3.73 gears

I know with those head If I move to a retro roller the springs will need to be changed. Will I have a problem with fitting the new springs? I kind of clueless on what deck height I need to go, or piston cc to stay within. Sorry I need some hand holding as this is my first stroker motor, and I want to build it to accommodate the heads I already have.

Any suggestion would be greatly appreciated! Please let me know if more infor is needed