Best OE 2 BBL Cast Intake?

There is a 2 barrel single plane 318 intake, I do not recall what year. Problem is the plenum is small. The tbi intake above looks to be the best, but you never know till one is flowed on a bench. Keep in mind, that dual plane intakes are hard to port no matter what the material is, but it can be done. It’s hard to reach far into the ports. Guys have hole sawn into specific areas from the top and the bottom to reach inassesable areas to port and sealed them with pipe plugs, core plugs or just welded them shut.

Charles servedio has ported and flowed 2 318 two barrel stock intakes on his YouTube channel.