what efi parts are these and can i use them on my 360 magnum

50 lb injectors are huge, you can flow massive amounts of fuel with those. Probably too much fuel; idle may be hard to tune.

On the throttle body, it looks like it has a stepper motor style idle air control. Can you post pics of it?

I run Megasquirt 2 on my 318. It's inputs are manifold air pressure, coolant temp, tps. Outputs are full control over fuel and ignition and its timing. Also have an idle air control to make idle nice and adjustable.

Go to www.megamanual.com and start browsing around to help you out and help answer a lot of questions.