CEN diffs have tanked in price w/ HPI BP Diff..

[Gee]

Do the new hpi diffs have the same ratio as the cens 26/9?

Edit:
BrianG already has it in the speedcalc. Here the ratios:

Cen 26/9 2.888888888888889 MPH +7.81

HPI 29/9 3.2222222222222223 MPH +1.43

Normal Savage Diffs 43/13 3.3076923076923075 MPH 0.00

FYI: MPH gained is just what came up when I listed my setup on the calc for the three differnt differential.