Which aluminum head would be best? PG 4 questions about RHS

[Fabrimacator21]

What about the good old dart iron eagle platinums? supposed to be good cast iron heads. Not a bad price either.

$750 on ebay. (wouldn't let me post a url cause I'm a noob)

How do these compare to the RHS heads?

 

[dyeager535]

IMO there are too many factors to say one head or another is "good" unless we know the application.

Also IMO, if the chambers aren't "fast burn" (As in Vortecs and all later) then they aren't worth squat. Not sure if any aftermarket companies are making heads that still use the old combustion chamber design, but I'd exclude those from my decision making process right off the bat if they did.