318 intakes - old style?

100% it's about part throttle under 3000 rpm's drivability between the two intakes
it's an interesting exercise to be sure.

my gut check says the dual plane version out classes it, especially in that 2000~3000 range. but early single with small ports and small valves and small carb? i'd bet it'd be hard to quantify the difference with the butt dyno.