hey guys new to the site. but anyways im starting a rebuild on my 03 ram 4.7 and before i start ordering parts how do i find out if i have aluminum heads or steel heads. i have read up on the 206 cams and thinking im going to go with that set up with port and polished heads. also read u can use the 08 4.7 intake mani on the 03? if so what is needed for this? any other tips or parts i should get for this build and thanks in advance for the help.