Quote Originally Posted by cabellerosteve View Post
I'm not sure how to tell which valves are in the head or what cc they are, any ideas???
Welcome to CHR!

If you have the engine apart, why not measure the valves and check the cc volume? A piece of plexiglass and some Vaseline to seal, plus a container marked in cc's tells the tale. With your story, knowing that the PO pulled the engine from an '86 truck I'd be concerned that it's a 305 and not a 350. I suggest you check the casting number on the back of the block, just below the intake and the numbers stamped on the block in front of the passenger side head, just in front of the sealing surface to see what you have.