LD4B on a 360
Run the LD4b. It's a good intake if you can live without the coil mount.
The port window thing is a red herring. How big is the port window on a Stealth intake? People recommend the stealth on 340-360 all the time. I'll give you a hint... The stealth has a 1.95 x 1.00 window. A Performer 318/360 that NOBODY recommends has a 1.96 x .96. Those are BOTH small port window sizing!
An EDE RPM or air gap has a port opening of 2.17x.98-1.00
It's another of the great mopar fallacies that just won't die.