RPM at Cruising speed

[rzepko6194]

I'm in the process of getting my distributor recurved and need engine RPM at cruise (60 mph) for the guy doing the work. My Centurion has highway (2.71?) gears. Anybody know what my rpm would be at that speed?

Thanks.

JP

[Smartin]

Check this out:

http://www.thedirtforum.com/rpmcalc.htm

If you have a 71 or 72 Centurion, you rear gear ratio is 2.93. 73's have a 2.73, if I remember correctly.

[rzepko6194]

Adam,

Any idea what the radius of the tire would be? My tire and wheels are stock. I'm out of town and won't be back for another few weeks to get a measurement of mine.

Thanks.

JP

[Smartin]

Probably about 28.5"

Edit: Radius is 14.25

[rzepko6194]

Thanks Adam!

JP

73' Centurion