milling 440source heads

Are you saying you pistons are .100 in the hole ? If so you can mill all you want off the heads because your pistons will still be .100 in the hole = NO QUENCH.

change the pistons

God Bless you JOHNRR!!!!
I wont increase my compression ratio. This is what i want to do with out changing pistons??
How will milling my heads to 68 CC's effect the quench??/ Will it make a differance?
The heads will go to 68 but what problems will I have??
I know i have to mill the intake