Yea the harness on my car is chopped just for the engine to run because of the carb setup an I was running a 700r4 with it you asked if and lol that tricky it's solid axle swapped with dana 35 rear and dana 30 front with front leaf springs if I had to guess lift 6 8 inch it fit my 33s no problem

If you could just get your engine running you could dropp it in my car and possible run my tranny

My harness is basic power to comp from alt and to battery and one or to grounds ... The computer in my car did nothing but start it

An 1995 no emissions too a plus so you don have to connect to comp to it just a safety

 

The one from the Blue one is the carb engine? I would do a compression test and cylinder leak down on the one in the black truck. Are you doing it because there is a problem or you just want to mess around and spend money?
I'm actually a Jeep kind of guy and have a 95 zj i'm working on. I got a header and exhaust system from Kolak Performance i'm putting on and doing some other stuff to my 5.2L. But i'm interested to see the suspension setup you have.
I believe of something ain't broke leave it alone at my age. I can't afford to do the stuff I use to do to Mousse and Rat engines like i'm still living in the 60 era and when Motion Performance was around. I will PM my number to you later when I get done with the MRI. I an doing this on my phone and my connection is iffy in this cellar.