It will work just fine.
I have bolted them up
I have a p engine in my 88 BII
I built a 84 Ranger for a friend we used a gt40 engine
The very first set of TMH for a TTB conversion truck were made for my 88 BII and eventually replaced by Torque monster as he updated his design. I was the guinnea pig. Robert wanted the headers back, I asked him what for? He was going to cut them up.
I begged Robert or Torque Monster to let me keep them, I promised never to sell.......he let me!!
So a few years later I gave them to my buddy and we used them on his 84 Ranger build, ATK 360 HP 302/4r70w/np205twin stick
In the shop we mocked them up to a gt40 head, also the atk aluminum heads, still in the truck now.
You will want 45 degree boots and careful routing of the wires
Otherwise they bolt directly on