small block heads, 4027596 casting # any good??

polyjohn said
So now its back to the track with a small-block Duster for me and the head saga's start again!
I want to see how far I can go with all iron 371ci engine before gettin exotic.

my all iron 355'' is well in the 9's and it's far from exotic, heck even the rockers are iron. it's all in the parts selection.