Clutch pedal will not come back

Pedals are the same so far as I know. Z bar is different I think slat VS V8.

its not a /6 vs V8 thing, its an early vs late thing, sometime around 1970 they changed the leverage ratio to decrease pedal effort due to complaints from people saying it was to hard (yea /6 and V8 use different Z-bar)

I got that guy's, I bought the v8 z bar along with 600 dolla's worth of parts to convert from brewers, I've done this before lol

I know that the slant is narrower in the bell area so the z bar MUST be longer to reach the bell, but not the pedal ratio.