yeah, I remember the 3.91 days in a BB Roadrunner I had....I could hear the years being shaved off the rings when I loped down the interstate:)

I'm running a 2.76:1 and I'm actually guestimating the RPM because I'm not running a tach....it may be closer to 1800ish. I know it's not much off idle(850)maybe closer to 1400 and definitely at 50 MPH..

any other ideas out there??