The results of the compression test are:
#1 - 185
#2 - 178
#3 - 184
#4 - 184
The night before when I did the test, but forgot to hold the throttle open I got:
183, 170, 184, 180.
When I added a little oil to the cylinders, I got:
191, 185, 196, 189.

I'd say these numbers are pretty good, what do you think? Truck is an 85 with 143k miles. Motor specs are standard psi of 171 and minimum of 128. So, compression is a little high, I am guessing from carbon buildup. From looking at the plugs before and after doing a tune up, I'd say there is a lot of "dirt" in the motor.

The truck still hasn't made it onto all 4 wheels yet, but after I get it rolling, I plan on driving it around a little and then adding a "tune up" in a bottle <img src="/forums/images/graemlins/ignore.gif" alt="" />. I am thinking I'll add some not-so-potent engine flush, dropping the pan while I'm at it to clean out any goop. Also, I'd like to add something to the fuel to clean the upper end.

After this, I'll see what I'm left with. I am thinking the problem may be the valves, especially considering the fresh oil found on plug #3. What do you all think? Lets pretend its just the valves and that my motor flushes don't do more harm than good, would you recommend running a heavier weight oil like 20W-40 (as suggested by my repair manual)?