the intergrated was more prone to cracking then the other heads.and mostly due to over heating then anything else.It's just like the low deck motors were more prone to cracking at the #1 cyl right over the water pump,compaired to the tall deck 292 which didn't due to a much thicker block (being taller)
And if you run the 307 pistons and the 194 head you should be around 10.1 Give or take when milling the head or the block.
God doesn't like ugly.
