Ernie,
Aluminum heads will dissipate the heat better and you can go a little higher on the compression with them and still run pump gas. If you want the stock iron head look, just paint them like I did my water pumps. Everyone thinks they are the stock pumps and not aluminum. You will never be happy again with anything less than 600 horse so go for it and do it right. Me, I am very happy after I lowered my power in the 69 way down. I think if it didn't cost so much I would replace the stroker with an engine in the 375/400 horse range.
By the way, I looked at the pictures Ron(CW) posted and he got his little jab in I see. This is a picture of Ernie's car while it was running under it's own power or something along that line. Very nice pictures and you and the car are becoming famous on the island.
Ron
