trans question in 67 f100

[Junior Knight]

I have a cruse-a-matic in my 67..in shifts smooth but fast...before I get to a good speed, its in high gear. Is this normal?

[Racer Z]

It is for my F250 with a C6.
If I romp on it it will down shift. How about yours?
If I am accelerating with a heavy foot it will stay in lower gears longer, but if I'm just being gentle, it shift into high almost right away.

[BobbyFord]

You can adjust the modulator valve by removing the vac hose and inserting a small screwdriver into the vac nipple. Clockwise will lengthen the shift pattern, counter-clockwise will shorten the shift pattern.

[basketcase0302]

Like 1/4 to 1/2 a turn then test drive if memory serves me correct.

[Junior Knight]

thanks guys!