Carb and Intake for 5.2 Magnum

That intake operates from 1500-6500 rpms, so it might be much for your 5.2 but i don't know of a smaller intake for Magnum heads. I think Mopar made one. Never been a fan of the side hung float Holley's. In the 600cfm range the AVS2 650 Edelbrock or625 Street Demon would be my choice and possibly any of the 4150 Holley's in the 600cfm range. For economy, whats wrong with keeping the EFI on there?