So, while trying to figure out where to spend money on my project 68 Coronet, I have been pondering many things. Among those is bang for the buck on an engine rebuild. The engine will be a 440. It will be running HP exhaust manifolds, an almost stock intake and a stock carburetor. I am trying to keep the engine stock appearing. My question is, if you had to choose, would you run aftermarket heads (specifically 440 Source Stealth heads) or stroke it? I realize there is no perfect answer due to other variables. I am looking at it as adding money to an otherwise fairly stock rebuild. Where would you put the money, or not at all?