Exploded diagram of the pedal cluster:
Pelican Parts: Porsche 914 Foot Pedal Assembly
There is a triangular-shaped bell crank that the rod from the throttle pedal hooks to and also the end of the throttle cable hooks to. The cable threads into a socket (and there is a jam nut as well to keep it from unthreading) which is pressed onto the ball on one corner of the bellcrank.
--DD