Mopar Performance aluminum Commando head

I have been looking into the MP 340 commando aluminum cylinder heads. is it worth it to go to they big port aluminum commando cylinder heads or stick with the derect bolt on aluminum mp commando heads. about how much hp. will either add. Also what is the cumbustion chamber CC on either and how much does either flow. also on either of them can i run my original stamped rockers?? Also i have a MP 508 lift purple shaft cam, how will the 513 lunita voodoo cam work against this and how well does the mp 533 hydralic perform??

thanks chris