I am the owner of a 1978 Nova. It is the regular Coupe, and has the original straight 6 (250) in it. My list to fix it up the right is long, but the engine is whats important right now. Have had to replace the head twice, but I still have water that is going somewhere. I am wanting to swap to a 350, but do not know what all the changes would require, so any help would be appreciated..