Tunnel Ram for 360 Mopar

Tunnel rams make more low-end than single-planes and a bit more overall power too (not my experience just what I've read by the pros). The big downside I see for street driving is the carbs are so far from the engine they will never get any heat so don't try driving when it's below 45°F outside lol. The plenums are usually really big but having the runners pointed straight down instead of out the sides really helps keep fuel from falling out of suspension. That sharp right angle on a conventional intake off the carb base wrecks the fuel flow, also partly why carb spacers can have such a big effect.