4100 settings for truck set-up

Have a 4100 C5AF-F carb, that did not come on this truck a Ford F-250 with a 390 standard engine with automatic trans and manual choke. Had it on the truck for years and seem O.K, know its time to rebuild. Have carb kit for it but not sure on the float settings primary and secondary and the pump rod setting in or outside and 1-2-3-or 4 and any other settings this carb should be set up for use in this truck Thanks