Carbed Magnum parts list?

Where does that pulley come from? The one that replaced the P/S pump.
Its the factory tentioner just moved to other side of engine, custom bracket holds it in place.

I thought you had to use the Magnum flexplate and balancer for some reason. I will block off the mech pump and run electric. However it will still be a 904 trans car
You have to use the Magnum balancer and flex if you have a 5.9 or if you want to run factory injection.

Lastly, still haven't got a straight answer on this. Im.using my LA front case. But do I use the Magnum balancer or la? I wanna run the LA style v belt.
The 318 and 5.2 can use same balancer, 360 LA is different as is 5.9 magnum and 360 wont work on 5.9.

If there both an internally balanced engine, yes.
The Magnums pulley is part of the balancer.
If the Magnum engine is an internal balanced engine, then your LA damper may be a internal damper.
If your Magnum is externally balanced, you need a damper that can accept pulleys. Summit racing has such a damper. I have one myself.... Somewhere....
FYI Only 2002-2003 5.9's have a pulley/balancer cast together, all the rest are separate with the exception of a few late 2001 5.9 Durangos and Dakotas. PRW makes a better balancer that works on all LA as well as all Magnum V8's....comes with 3 balance weights that screw on for late 340, LA 360 and 5.9 Magnum