This looks like the kit from sicspeedmonte. If so, this kit doesn't use the cruise wiring, or mechanical linkage hole. A new hole needs to be drilled, see web site for further details. I have this kit and its well engineered.
I have not used that kit but reading the instructions they do reference the hole for the cruise control wiring. It appears the hole has altered to work with the pedal that comes with the kit. I used the F body pedal, modified the length of the pedal and position of the pin to make it work. I used the hole for the cruise wiring and the rod from the master lines up perfect on the pin on the pedal shaft. My doubler looks very similar the double in the kit except I did not elongate the hole. The only reason I posted that picture was to give the op an idea what the double looks like.