D0VE Heads on 86 460

Hey I've got an '86 f350 4x4 with a 460 and i really want to up the hp numbers from the stock 225... i got a set of '70 d0ve heads and was thinking about throwing them on the motor and see if it wakes it up... anyone know what the stock C/R is on this motor? how big of stock chambers on the heads? I think the d0ve heads have 74 or 75cc chambers but im not 100% sure... any ideas?

The e6 heads are good heads too. they do have the smog stuff but that can be blocked off, if emissions are not a factor. I had an 85' that was really lazy, I ripped off all of the smog equip. and went with an edelbrock intake, blocked off the smog ports on the rear of the heads, installed a set of headers and it woke it up a bunch. Not that the D0ve heads won't help a bit, but the E6 heads are a closed chamber type of head too, on the plus side have hardened seats already.
[addsig]

I see well emissions are a problem as i live in california and have to smog the truck.... they wont even pass me with an aftermarket aircleaner box