I am installing a Fitech fuel injection system on my 86 Dodge Ram.

I have removed all of the emissions related parts and installed headers.

Question is what all does the PCM control on this truck? can I disconnect it and remove unnecessary wiring and install orange box ECU with vacuum advance distributor and ballast?

I know there is probably an easier way going to points system or petronix but I already have everything mentioned brand new in box.

any help would be greatly appreciated.