Yes 1st make sure the throttle valve cable is hooked up.
Fords don't care but Ive heard that you can damage a Chevy trans if the cable isn't hooked up at all, it sends the wrong pressure signals.
After all is hooked up the Governor will control mainly full throttle shift points, you probably want these about 4000-4400 for a mild 250. Changing governor weights & springs (under the can on drivers side) will change these RPMs. The Gov also has some small effect on part throttle shifts but mainly at full throttle.
