............1st off a 318 bored .030 is not 323.....u do not gain 5 cube on every engine bore .030.......just saying........eg a 327 chevy bored .030 is a 331......only a 4 cube gain......kim.......
it's a rule of thumb, who cares? the famous derogatory one sentence post thats on countless topics on here that in no way relevant to the original question........annoying.........
now to address the topic at hand, i had a build 318 that loved a 750 double pumper vs. and edl 600..just remember u can only throttle screw lean it so much because the the CFM of air will be the same, i assume the motor is pretty built since you wanna go THAT big, but i agree, for some reason the modified 318 in my experience has always liked a biggish carb vs smaller.
