71 Demon 340, 3 speed or 4

OK guys, I can't decide whether to put the 3 speed manual tranny back in my Demon or upgrade to the 4 speed. The car was originally a 3 on the floor. What are the pros and cons of these two tranny options?

Thanks,

Eric

Depends if your going to drive it or just look at it.Go with a 5 speed if your going to drive it.3 speed if your going to just look at it.