440 Engine Rebuild advice

Here's my build: Stock stroke 440 (total cost to build $6800 which included labor and many second hand parts).

For those who say you need a stroker to make power....
Currently at 593HP/578lbft on 91 pump- My engine builder says there's more but I'll belive it when I see it.

Stock cast crank
Resized and prepped LY rods with ARP hardware
ARP studs, mains and heads
ICON863 .030 pistons zero decked
11.2: compression
Hughes 5054 solid cam .627/.640 lift @1.6 with EDM lifters
Hughes 1.6 roller rockers
Comp pushrods
Fully Ported Promaxx Heads: Ive had a few people touch these up... I could have bought TF heads by the time I got these where I wanted. (311 cfm at .600 lift) Valves back cut and 5 angle Valve Job
Heads milled .040 to obtain 80cc combustion chamber
Isky Springs
Trick flow single plane intake
Brawler 950cfm
Milodon road race pan

By comparison, my engine dyno'd immeditately after a mild 400 based 511 build which dyno'd 543hp and 629 lbft.
This build consisted of 10:1 compression, RPM heads (untouched) Comp hydraulic Extreme .563 lift (236 at .050 I think). Eddy RPM intake and the dyno carb.... I felt this would be a great street car engine but I think the heads really corked the upper rpm range HP and could have used more cam. THis engine was pretty much done making power at about 5600rpm for so

My engine is deffinately more "racey" but the engineer who built the 511 lost a 100 bucks to my engine builder.