throttle cable length?

63 dart 360 in OE location. i had drilled the firewall for 2 holes for a later A body pedal/throttle cable but it is way to long. I found some cables on Ebay but they appear to be too long. I thought about shortening the cable I have & recrimping everything but I dont think that is doable. any thoughts or suggestions. thank you for your time. RR
Author: admin