Don't worry about it, I had a '94 F-350 4x4 with a 460, 4.10 gears, and 3-spd auto C-6. At 65 mph I turn about 3200 rpm's with 32" factory tires. The truck is my dad's now and with 140,000 on the clock it doesn't burn a drop of oil. I actually used to run it 70-75 everywhere I went ( I got the truck when I was 16, so you can imagine what hell the truck went through, 4-wheeling, and btw it was my hot rod too, lol). At 70 it tached like 3500 and 75 it tached like 3700 (can't really remember it has been a while). 460's don't like to rev, but this motor still runs perfect. So you have done no damage.
Oh yeah about the 50+ miles thing, I drove out to Silver Lake Sand Dunes with this truck when it had about 80,000 miles on it. Silver Lake is on the west shore of MI, and I live nearly on the east shore of MI, (@240 miles I believe from where I live). I drove at 75-80 mph and the truck never missed a beat. Although I stopped for gas before I got there, and I have dual tanks. The gas bill used to hurt, that is why I bought a Power Stroke.
[This message has been edited by 88GT5.013.02 (edited 01-15-2001).]
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