Slant Six Bogging Down!

I had rebuilt my carburetor, but I neglected to replace the float because it tested fine; That was a mistake, as the float had developed a leak. As I was driving in the car started to bog down a little at a time, it would run, just not well. I kept going and eventually the car wouldn't start because it was completely flooded.
I had to call my dad to get the trailer and come get me out of a chinese restaurants parking lot at 1 AM. Not fun.

Im not sure thats your problem, but it sounds similar to what happened to me, so it would be something to check.