Have a 68 Chrysler newport 383. Am installing a new pertronix III distributor. I want to do it all myself and just want to confirm I'm doing things right. *Pull cylinder 1 spark plug and move the piston until its right at the top and I can reinstall the plug. *Pull the dist cap with wires still attached and make sure the rotor is pointing at #1 also. *make sure to mark things or take pics etc. *pull the distributor and put the new one in This is where I want to specifically confirm: For initial idle timing I leave the vacuum plugged in, correct? I want to advance to around 14 degrees. Once that is set I unplug the vacuum from dist and plug the hose, rev engine to 3500 and then confirm total timing?