OK WE FOUND OUT WHAT WAS WRONG WITH THE FUEL PUMPS
Apparantly we've been forgetting to use this 1/4th inch plastic spacer to mount the fuel pump on and then put the two on the block. We found this piece in the back of the car (on the floor wrapped up in those rugs as shown in the pics I posted a few days ago) and when we put it on, it fit much better and should work perfectly now. Without it, the oval egg thing on the camshaft kept pressing the pump too far and breaking it. With this on, it should prevent it.
Tomorrow we'll be getting a free replacement fuel-pump as well so forget yes
Imagine something like this, but it's a black color and has some insane scratch marks (we had to sand off some JB Weld that the last owner put on for some reason)