Today, dollar for dollar, is the 318 faster than the 340 ???

383 2bbl motors can be bought on the cheap..... 383 is a real bang for the buck. Unfortunately, in the mopar community, they fall in the same category as 318's...
Funny how that works, and the 360's were considered junk back in the day.
old school guy's still remember the 383 Roadrunner package, 68 being the best one.