Where does the manual choke cable go through the firewall?

[Old Yeller 1970]

I reckon this question will mainly be directed at 67-68 owners since the later model trucks like mine had a thermostatic choke. Now I've installed a Holley with manual choke and need to run the cable. I figured the best way to route it would be in the original stock location. For those of you who have a truck so equipped, a photo or brief description would be appreciated.