Crank No Start to Crank Weak Start

[9ism]

Hey guys, I need some help from someone more experienced.

I recently adjusted the valve clearance on my 1972 1.7 to spec at TDC. It ran well but was making some clacking sound which turned out to be an exhaust leak because one part wasn’t tightened all the way. That has been fixed with new copper gasket inserts etc.

With that being said, the car ran for a bit after but then stalled out and since then I have been dealing with a crank no start which eventually turns into a crank weak start. The car will idle very low and eventually die out. This is after cranking the car multiple times over the course of 20 mins or so. It really only fires up when starting at WOT to by pass the pump.

Here is a video: https://youtube.com/shorts/i6LkwhY4t0I?si=ithgBV8UXBd2Fm_H

Some notes:

Battery is new
CHT is new
Ignition Wires are new
Dizzy is pointing at the right place when at TDC #1
All vacuum hose are plugged or connected (maybe something is in the wrong place?)
Fuel Pump works with key turned
Injectors are spraying evenly
Relays are working
TPS clicks correctly on inspection

I really am not sure where to start looking next, Any ideas?

Pic of engine in case something jumps out to you guys.

[ILM914]

try and run it with brake cleaner or starter fluid or some gas in the intake. it it runs its fuel related. Clogged fuel filter or pick up tubes in tank. I had a similar problem recently. I floored the car till it started and then manipulated the throttle until the car started to run better then after about 1 min the care ran smoother and all was good. Did you tighten all the locknuts on each valve ? when you completed the adjustment? may want to re-chech the valve clearances. make sure the distributor cap is good and you have spark at the plugs

[ILM914]

also make sure your plug wires are in correct firing order hope some of this helps

[Frinxnotch]

It sounds like you've checked a lot already. I'd suggest double-checking the timing with a light, even if the distributor is at TDC #1. Also, verify the fuel pressure to rule out a bad regulator causing a lean condition. Make sure there are no vacuum leaks around the intake manifold or seals, and check the idle air control (IAC) valve, as it could be causing low idle. Finally, weak cranking could point to poor grounds or wiring issues, so check those as well. Hope this helps!