Just measuring up for fitting the headers.
They are obviously not going to fit straight out of the box, see pics.
The header bottoms need to clear the chassis and the front bend needs to clear the front A arm mount.

Do you think I can heat the bends with a propane torch and straighten them out for clearance or do I pie cut them and re weld.
The headers are just painted mild steel nothing fancy.

To heat and straighten I would have to bolt the flange to the bench and then possibly use a piece of 4x2 on a trolley jack to do the adjustment whilst I heated the bends.