Not sure where I come into this one but I think it's all in your head. I can hear when I need to shift my truck. I have never had a tach in a vehicle that was a manual transmission, two auto's with tachs (go figure). I am not sure where I shift my engine but I would be suprised if it was over 3000 by much. Seems to me that shifting by ear was the preferred method. I say rev til the power stops and then shift, and 60mph is your top without reworking some things.
Kyle
