Just a note:
If the theory holds true that your speed in 4th gear @ 2750 (half of 5500) can be doubled to give you the approx. speed at 5500 rpm, I'd wager to bet 4th gear @ 5500 should equate to ~103 mph - 51-52 was indicated by my tach at 2750 in 4th. No good chance to actually hit 5500 recently.
