I recently put a tach in my car. At 65mph in 4th the engine turns at 3300 rpm in 5th its 2250 rpm. That's probably good for a 250 but maybe not a 194. My rear gears are the original 3:36. 3:08s would have been better with the gearing I have in the tranny but of course there would be no reason to use the OD.
Martin
