C6 trouble

[ot1970mach1]

1970 mach1 , 351C,C6 auto , shifts super fast , 3rd gear at 10 mph, already adjusted modulator and have replaced governor, any ideas , thanks

 

[Az Pete]

Can the bands be adjusted? I know in a C4, they can be but not much experience with a C6.

Just did some research.....only the intermediate band is adjustable. Shift points are controlled by the modulator. Since you adjusted yours, I might suggest trying a new one. Next step could be a rebuild...