Stretching Clutch Cable?

[Coupe50h]

My take on this, looking at mine, the firwall adjuster, can adjust pedal height, but for minor adjustments.
the nut on the cable on the fork will pull out any slack, and then you can get the firewall adjuster how you want it. jmo...good luck

p.s., my old stock quadrant would work fine until i got into traffic, then it seemed to heat up and slack up? and i had to force it into gear, real aggravating!!
after i installed the d@d kit it seemed to fix that problem, but create a few other that were minor, i just had to figure it all out, did break one cable.