which is the better intake manifold

67Dart273 said
Uh.............factory............

69 Cuda 440 said
No Brainer here,

The Factory Cast Iron 4-Barrel.

The Edelbrock SP2P-318 is designed for a Motor Home and Truck. Small-Port runners, good for up to 4000 RPM's.

This. It's one of the predecessors to the Performer- meant to be an improvement over the 318 2 barrel intake and an alternative to the 360 2 barrel intake, not as an improvement over the factory 4 barrel intakes.