1987 Ford Bronco Fuel Problems.

Just bought it! Ran for 2 days, then the next day it wouldn't start. It would turn over though. Checked to see if it was getting fuel, it wasn't. Let it sit a day then came back started right up drove it a day then it wouldn't start again. Installed a new fuel pump dropped the tank grounded the wire, new fuel filter inside tank new fuel regulator that wasn't it either. Tried fuel relay it does not go all the way down it is still about an 1/8 of an inch up. I don't know if that is ok or not, it is not getting gas that I know of, but why I cant figure out! We've tried everything what else could it be? The wires seem to be ok but I'm really not sure, any suggestions? Thanks!