[Healeys] Power band of two different motors, or is it the rear end?

[Per Schoerner]

Rich
Furthermore, it seems that the speedometer drive gear ratio on a 
100/six is around 2,5:1, whereas this ratio on a 3000 is 3,2:1.
Is this something you can confirm? Do you know what it is exactly? 
Number of teeth on the drive gears?

Per

Rich Chrysler skrev 2011-07-10 03:41:
> On top of that, and nobody's mentioned this at all; the overdrive ratio on
> the 100/Six was 28% while on the 3000 was 22%.