I have searched and read how to adjust the timing on here for days and I cant get a clear answer on how to plug the vac line. Please correct me if im wrong.
Warm the engine up, unplug the vac line from the dist and plug it. So, do you leave the dist vac port open??? Or plug it to. Basicly, do you plug the port on the dist, or leave it open and plug the vac line going to the carb?
Also, everyone says something differnt on engine speed, 650,750, 850, or 1600 rpms. What actuall RPMs do I need to set it at?? The engine is an 1988 258 with 170K on it, team rushed, nuttered, 32/36 Weber, and holley Fuel pressured.