Now that I have a few minutes, I can explain what I did to make great power and mileage for the trip...

I advanced the camshaft 1 tooth on the sprocket... This pulled my powerband down lower in the RPM range (270* EB cam). The engine made little power beyond 3500 rpm, but it had massive torque from about 2400-3200. After moving the cam, I set the timing back at 5* (jumper installed), and filled up with 89 octane to stop the pinging induced by the cam advance.

When pulling, I stayed in 5th gear until the rpms fell to 2500 going uphill, then I would drop to 4th (eventually 3rd on the steepest grades). I had very slow accelleration with this much weight, and I knew it, so I didn't force it to accellerate any faster than it wanted to. Unfortunately, f there was a grade after getting on the highway, it would take up to 3-5 miles to reach cruising speed (75 mph). I was litterally pulling right with the semis... Fast down hill, slowing down going up. Several made comments on the CB about how that little 4 cyl was pulling such a great load with relative ease.

The next part was the most important... I removed the LSPV bracket, and tied the LSPV rod up as high as I could. When pulling 3,000+ pounds beind you, it is nearly impossible to have too much braking power from your rear drums. It was able to stop decently... Almost as good as stock (empty). Even if you don't advance the cam, the LSPV relocation should be done before you tow ANY large load.

Any questions?