23-2600 with a 3.73 and a 3-speed isn't really realistic.

Depends what the engine you're using is set up for. What RPM does the cam want to run at? How about the intake? There are a lot of variables here.

My truck runs at about 2800 at ~70 MPH. I've got 31 inch tall tires and a 3.42 though.


1946 GMC Pickup - S-10 Frame, 455 Buick, TH400, original patina.

My 46 GMC on Photobucket