390 w/open chamber heads

RRR,

I haven't figured the final RPM in forth gear yet. I thought 4.10 gears would be too low. Geeez, I'll be pulling wheeelies!!!! I want to maintain about 2200 to 2800 RPM at 65-70 MPH. I'll have a torquer cam so I'll have plenty of low RPM power. What RPM do you think my engine would be doing with 4.10s and 70 MPH (think my rear tires are 28")...I'm not against 4.10s I just don't want high RPM at highway speeds.

Treblig