I think HRL is dead on with what happens to these engines which we baby. They come with 3 speeds too far apart, 4.11 rear ends which really makes the engine sing at 50 MPH. They were designed and engineered to carry heavy loads and to be tached out before you shift.
Who does that to their precious "Baby" today? No wonder they get carboned up.
Carl

Last edited by 52Carl; 11/28/2016 2:31 AM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission