Weird, sudden AFR issue Proform 750cfm!

I had new gaskets. They are the thin metal washer type. It was still leaking from just snug, right up until the threads broke.
What is the secret to getting the squirters to seal?

Anybody know a good source for the hollow screws that don't cost $10-15 each?

I have another used carb I bought that I haven't had time to mess with yet, but I do know both the squirters were leaking. Don't know why that didn't clue me in this could be the problem with the carb on the car!

Looks like the threads stripping on these is a pretty common issue. Maybe because of the slots? ...and aluminum. Seems like a bad design in combination with metal gaskets.
I bet the other carb has the same problem, so I want to buy 4 hollow screws and do them all.
The heli-coil kit is already $40, but has 15 inserts.

If you need the helicoil kit, I've got one I can toss in the mail for you to borrow. I bought the "Recoil" brand kit a few years ago to do mine and only used one of the 15 inserts, so it's got plenty of inserts left. You're welcome to use it if you send it back. Send me a PM with your address if you want to go that route. I even have an extra hollow squirter screw and some paper gaskets I can include free of charge. I've had good luck with paper gaskets on the bottom and the metal ones between the screw head and nozzle.