My main objective was to squeeze out an additional 5 - 10 mph on long flat stretches while preserving additional wear on the engine from revving too high. If I can maintain 55, possibly 60 mph on long flat stretches, then that is just fine by me! I am not looking to make a speed demon out of her, just really not wanting to slow down my peers too much while they wait for me.
Hell, I guess those disco and rangie guys can just sit around and wait for me then!

Thanks for the input and you are right, it's rover time when you get there.
