throttle linkage cable Q

I had quite a search to find an outer cable that was the right length from firewall to holdown ferrule. good info guys, I will get into it & very much appreciated. RR EDIT I think the "cable knarp 1/4" to clamp the pedal end of the inner cable will work for me. I will cut the longer inner cable that I have down to size & clamp it with this clamp. I couldn't have solved this without you guys! RR