I don't know if you get Car Craft, but they did a article about
aluminum and cast iron heads, pretty much this vs that.
but anyway they were saying that tha iron heads were as good
as the aluminum ones, cept for the weight.
ever use any of these heads... 291, 292, 186, 187, 461, 040, 041,
414, 034, 113. thats from a list I made of heads with 62-64cc