Thanks for all the replies, I really take everything you guys say seriously. However, let's just say I'm stuck with these iron heads. Let's say I will buy a different cam for this motor. Based on these heads and mostly stock internals, which cam would you recommend. Again, I originally bought the big roller cam 16 years ago when I was 20. Now I am trying to figure out the proper way to do it. I know everyone advises forged internals and aluminum heads, but I have seen and head of plenty of people getting 450hp out of a motor with a stock bottom end and iron heads.

Does anyone have a guess as to what these heads are? I know that aluminum heads are the way, but I have what I have. And I know that iron heads can still make plenty of power. Maybe not 500hp, but at least 420 or so. And that would be fine for me.