Throttle cable

Trying to get the cable hooked up but seems way to long. I think it is original to the car that was a slant 6. Low deck 400 with a Weiand dual plane, Holley and a 1 inch spacer. The bracket is to short for a good angle also, Looks like the one I have on my 68 R/R. What are you guys using? Will I also need the carb adaptor linkage also. Manual VB so not using a kick down. Thanks.