Bought a square body from a guy who has this system installed but he had problems with it running smoothly so I took it off and replaced it with an Edelbrock 1406 I’m not familiar with these systems but is a good deal for someone who knows what they are doing. I have the monitor as well but I believe the connector needs to be replaced. Holley sniper EFI Holley hyperspark MSD digital 6A-6201 Fuel pump Holley fuel regulator Holley sniper monitor