Low Profile Single Plane Intakes

Since you are running large port heads, I'd go with an Offy Port-O-Sonic. With some mods, they were recommended for Super Stock class racing. They will not limit your rpm either. Not that a 360 needs rpm. An Offy 360 intake also comes in a large port that looks similar to a factory 273 Commando intake. I'm contemplating a 273, 1.88 "J" head build using the Port-O-Sonic, factory exhaust manifolds, and Commando straight thru single exhaust.