Check my throttle linkage

Cables aren't supposed to be looped. They'll drag in the sheathe. Tighter/smaller the turn, the sooner a strand or 3 break and dig into the sheathe. Even those cables without a sheathe, there are formulas to figure turns/pulley diameters. That cable looks long enough for a slant 6.
How to Choose the Right Mechanical Cable Pulleys | Sava.