looking at maybe building a pair of these up. ported etc. what all mod's need done and how much power could one make out of a 355 with the right cam intake combo. we are thinking of a hollet street dominator dual plane(so far its the best all round intake i have used) and still up in the air on the cam. about 10.1 to 1 and it will see some spray. looking into better heads and wondering if it worth doing these up or buyying aluminum.