Considering it’s not running you scrap it and move on to a somewhat reliable engine.

Cool story... that fixes the oiling issues too?... nothing like ordering 4 oil pumps from Toyota and not getting any within spec. That is of course your first hand knowledge and experience about block and head prep not just what you’ve read right?

Unless you’ve owned a MK3 Supra you have zero idea what you are talking about. These piles of shit have as much in common with the MK4 Supra as a lemon and snowmobile.