After reading the other throttle cable threads, I am now wondering about the difference between 1970-1972 and 1973 Big Block models. 1973 Part Number: 1244120 and looks to be 18 ¼” long from the firewall to the carb, and 11” from the firewall to the mounting bracket. I just measured the original one on the car. I don’t see dimensions for the TA Performance TA1260 cable and the Stage1 Restoration.com big block throttle cable is listed at 21″ Can there really 1.5-2” difference between them, with the ’73 one being shorter??