Have a 1954 261 in my 1953 3/4 T. Chev with a T5 transmission and 390 rear gears, 31" tires. Now doing 58 m.p.h. at 2200 RPM.
Am thinking about switching out to another T5 that is 25% overdrive. Live in CO foothills, so up and down lots of mountain roads. Am I messing up to go to higher overdrive with current setup?
Thanks--TK261
