Righto I did my thing and here's an update.
I did a comp test and one of the cylinders was low with others being out of spec too. Turns out the head was leaking like a mofo out of the exhaust valves...so I rebuilt the engine.
I used stock turbo pistons, Spool I beam rods, upgraded piston pins, Cometic 3 layer MLS, ARP head studs with OS washers, new hx bearings with 360 thrust, inconel high pressure oil pump spring with adjustable relief, oil pump gears and backing plate, Ross balancer, Plazmaman intake and maybe more I forgot. I got hectic with the valve grinding paste and the head is passable. I relocated my trans cooler under the car and wired in the fan with a relay and a switch. I painted the rocker cover with Black Velvet Cerakote, it was sh*t before and now is a bit less sh*t. Haha I still gotta fit the catch can, I'll do that later I suppose.
I've had a successful test drive or 3 today, no leaks etc so happy days. It still runs the same boost, it makes 300awkw on about 14.7psi. This should tide me over until I can afford to rebuilt the actual turbo territory. The only thing I really want to do with it now is to have electronic boost control, the na pcm doesn't have that so I'm in the gutter using a boost tee.
Here's a pic, hard to believe I did it all in the span of 1 week, in the driveway, while still having family commitments.