I have a 1970 340 which was originally a 4 bbl and has been converted to a six-pack. I have heard that original 340 six-packs had heavier engine blocks as well as other components than 340 4 bbls. Is there any problem with running a six-pack carb on a 4 bbl 340?
Thanks.

 

i would not think so
people usually hot rod 340s and never have problems