1965 valiant 225 timing issues.

I built the carb out of 3 different ones. I couldnt find a rebuilt one anywhere. I removed all the plugs from the passageways and soaked it in carb cleaner. Went through all the passages with air and torch tip cleaners just to make sure they weren't plugged. I made sure all the holes lined up on the gaskets. I dont think I made any mistakes these are fairly simple carbs. It does have 2 separate jets. One has a rod that raises and lowers according to vacuum. The other looks like a screw but when you pull it out it is a tiny jet. The problem seems to be when it transitions from idle to midrange. If I crack the throttle it falls on its face but picks back up when you give it more throttle. I cleaned the plugs and ran it for a while and the look nice and tan now. It might have needed to get old gas out. I flushed the tank and put new fuel in but it didnt change the issue. Idk something is going on and I just cant figure it out.
Also it likes to have the idle air screw turned way out.