Another thing that may or may not be covered here is the carb-to-arm ratio; matching the distance of travel from idle to full throttle at the carb, and transferring it to the throttle valve arm. If the cable travels say 1 3/8" at the carb, the cable needs to cover that same distance below otherwise, the line pressure increase ratio isn't right from a factory engineering standpoint.
Most Lokar set-ups could benefit from a hole drilled inboard on the TV arm to get the ratio right; at the very least, checked.
Here is a clean example, gleaned from a ramchargercentral thread:
[URL="http://ramchargercentral.com/index.php?action=dlattach;topic=51044.0;attach=5556;image"][URL="http://ramchargercentral.com/index.php?action=dlattach;topic=51044.0;attach=5556;image"][/URL][/URL]