https://imgur.com/a/oKKdP
Left->right 1234

#4 threads are covered in oil, probably just the valve cover gasket but worth noting I guess.

About to get a leak down now

Compression seems fine. I couldn't run a leakdown cause the harbor freight tool uses industrial style fittings and all my shit is "aro" style.

Cold Compression:
Attachment 229705

Warm Compression:
Attachment 229706

I re-timed the engine. I'm gonna get the right adapter for the leakdown and see what it says.

Scope pics. #4 looks really wet. I wasn't using flood protect so it might be fuel. But #4 plug was wet too.
1:
Attachment 229701
2:
Attachment 229702
3:
Attachment 229703
4:
Attachment 229704

Those compression numbers are VERY low. You should be around 160-190 in that range. What CR are your pistons?

8.6:1 pistons, 00 head on 96 block.

Well that may explain a lot since your CR is lower than the stock. It is even across the board which is good though.

Yeah I think the compression is reasonable for my CR. And it's very even. Gives me a bit of hope.

Do any of the scope pics look like there's pitting? It's so hard to tell if it's pitting or just carbon build up. I guess my options are really just run it, or rebuild it. I still need to get the leakdown done today (gonna try to find the correct fittings at the homeless despot).

Numbers don't matter much, consistency does, his look consistent.
And besides that's an HF tester which is known to read notoriously low.
Just send it (run it)

Realistically that's what I'm gonna do. I'm gonna do a few oil changes and just crank the boost up.

Correct, in a follow up post I did say his numbers are even across the board which is good, just lower numbers than I would have expected initially.

OP :

I wouldnt worry about rebuilding the engine just run it. The pistons just look like its a lot of carbon buildup. Hard to tell if there is pitting in the pictures.

The only thing that saved you was 8.6:1 can't imagine how quick it would have scattered at 9.0:1

Leakdown was 20% cyl1 40% 2-4, cold. All blowby. Machine shop set the ring gap loose, maybe that's some of it. Still gonna send it.

Since the leak down is so high you have to run at least 20 psi to make up for it. Send it bro!!