Took it for another drive yesterday, trying to duplicate the same conditions, only this time the truck was loaded. There were times when I was having to give it quite a bit of pedal to maintain speed. It *might* have missed a small amount, nothing like the other day. It was hard to tell if it was missing or if it was road imperfections causing a jerking feeling, because I couldn't hear the motor real well, but in any case I don't think it was missing.

The only think difference was the temperature was a little bit cooler.

Power seemed a little down too. I've had a heavier load on it before, and it pulled hills better than it does now. I had to go all the way down to 2nd on one. I'd guess total load weight was, 3000-4500 lbs.

Maybe I do need to just do a full tune up, not like it would hurt anything...

How does this sound?
Plugs (Any recomendations?)
Wires (Any recomendations?)
Dist. Cap
Rebuild Carb. (Kit Recomendations?)
Clean out the oil bath air filter
Fuel filter
Coil
Fuel pump?
Vacuum Advance?
Any parts associated with Dist, Fuel pump, coil...
Adjust valves
Check timing
...uhhh...
Anything else?