I know this vehicle isn't a hotrod but thought I would ask here.
I bought a 92 F250 on an auction. Pretty sure it sat a couple years. It is dual fuel and I finally got time to get it running good on propane. I had driven it on gas too.
Anyway the front brakes get tight when I drive it. I did some tests and as soon as I got home I cracked a bleeder and there was no pressure built up. They seem to release fairly fast after I stop, usually. I checked the rod and it has no adjustment or stop on the pedal so I don't think it is applying pressure that way. I unhooked the vacuum and it didn't seem as bad but still there was some drag.
A few weeks ago I drove it out about 2 miles and it got so bad on the way home it would slide a front tire in the gravel on the shoulder of the road.
I drive it around the yard cold and apply the brakes several times with no ill effects. It seems to build pressure on it's own while driving. I'm a little baffled and can't afford to throw parts at it in the name of diagnostics. Any suggestions?