1995 Ford Ranger intermittent lack of throttle response/pow

I recently took a trip to Arizona from San Diego and decided to risk the trip with the 189,000 mile ranger I have. The truck has done nothing but good for me since I bought it from my buddie who is a tech. Services etc were all kept up with. The problem that occured happened only one other time on the way to Arizona again but this time it happened coming out of the grade/mountains towards San Diego. As I made the 10 min climb, I had to drop a gear for power and kept it in fourth most of the way up the hill not exceeding engine RPM's. Nearing the top, I noticed what I thought was a big gust of wind slowing me down, that I started losing power and throttle response was nothing. Depressing the throttle, it just bogged and I had to pull over. When I pulled over, the truck barely maintained idle then shut off. I let it sit, started it back up and it idled rough again as if not getting fuel. I decided to remove one fuel line from the fuel filter(inlet side) and drain that fuel out. After doing so, I reconnected the line, fired it up and it drove normal the rest of the way home. It sounds like a fuel management issue or something. Any ideas? I need help?