I have a 85 f150 motor that came with the 2bbl. Looking for some specs info on it. I'm thinking of changing the heads to gt-40p and maybe the cam and intake. Here are some of the things I would like to know. 1 what heads and there cc's size. 2 cam specs (I thinks it non roller) 3 What type pistons forged or cast. And anything else you think I need to know before installing it.