I am restoring a 65 Coronet 500. It was my first car when I turned 16 (27 years ago). My dilemma is, should I leave in the 361 big block or step up to a 383 or 440. My heart says leave it in, but my right foot says move up to the bigger inch engine. My machine shop guy does not recommend trying to build up the 361 because I'll just be disappointed. Does anyone have a good recipe for building a 361 to make at least 350hp or more. Any advice would be appreciated. Good or bad. I can take it.

Thanks