Yeah, I thought I remembered something like that. I would pull the sender assembly and look for a hole or leak somewhere down the line. If the car is dying at 1/4 tank then the whole is probably somewhere near the bottom.

I don't know what the regina sender looks like, so I can't tell you what to use, where to look, or what you will need to fix it. Probably just buy a couple of feet of fuel hose and have it on hand when you pull the exising sender.

good luck,
rt