My '54 235 had 3.55 rear end gears, got 18 mpg. put on Fenton headers and a Borg-Warner .70 overdrive and mileage jumped to 24 on highway, but in town (Los Angeles) was always 15 to 16. One experimental run on level ground uing a small 216 Rochester carburetor and holding 55 mph in o.d. got just over 30 mpg. That was great but entirely impractical, in the slow lane the semi's nearly ran over me, it was scary.
Last edited by chevman32; 08/26/2008 2:52 PM.
