Im debating on turbo charging my 460 thats being built. Ill list some of the parts/ upgrades

D0VE-A block
D0VE-C Heads
arp rod bolts
CJ rods
Forged Pistons
Roller Rockers
(possibly) roller cam.

If I turbo charge it I want to go for around 800hp, as it is we are building it for 500hp naturally asperated.

I guess my questions are, what size turbos would I be looking at. I want the turbos to kit around 2,500rpm-5,000rpm? What would a EFI system cost that has a adjustable PCM? I have seen manifolds that are EFI ready.

Im leaing towards leaving it naturally asperated but its a though