mabi this will help other mopar lovers in the future thanks again for your interest when you want to go fast and hard in a mopar and b first alot of times you have to do what the manufacture didnt..... mopars 4 ever
i just looked at another 340 block i have and you can stick your finger all the way in and around that area behind the snub through the freezeplug hole its flat all the way so id say you could remove this snub all the way to the block with no issues
On most early la engines on the pass side of the block were fuelpump diaphram sets is a casting stickingout about 1inch an a half about like the end of a hot dog weinnie and on some hp aftermarkit pumps wont clear it