1985 cranks but won't start

[PirateToast]

I've been trying to follow cranks but won't start videos all over the internet for the past few hours and have had no luck, so starting my own. My 1985 was starting consistently (but struggling a bit to start for awhile). Recently it doesn't start at all, just cranks and cranks.

- I know the battery is good
- I hear the fuel pump working and you can hear that in the attached video
- I tried pulling a spark plug and setting it on a ground, i get a pink spark that looks somewhat weak

Here's the video:
View: https://vimeo.com/280007508


What should I do?

 

[General karthief]

This is not a video but this is a step by step instructions on how not to waste your time and money, read it over to familiarize yourself then do it step by step
https://www.stangnet.com/mustang-fo...start-checklist-fuel-injected-mustangs.787471
Welcome to stangnet

 

[PirateToast]

This is not a video but this is a step by step instructions on how not to waste your time and money, read it over to familiarize yourself then do it step by step
https://www.stangnet.com/mustang-fo...start-checklist-fuel-injected-mustangs.787471
Welcome to stangnet

This isn't fuel injected :/

If I pour gas into the carb, it starts.

 

[General karthief]

Ok, sorry, I'll have to put my old wrench hat on!
Disconnect the fuel line to the carb and stick a hose on it then into a coffee can (do they have those things anymore?) Paint can or something like that an crank the engine for a few seconds (pull the coil wire off the coil) to see if the fuel pump is pulling fuel, if not check fuel filter, then the pump.
If it pumps fuel check the filter in the fuel inlet on the carb.
What kind of carb?