Corrected a problem with engine shutoff valve incorrectly hooked up (thanks guys!) now have a different problem. Engine still won't shut off. Vacuum valve works correctly when I apply vacuum, so does ingnition switch shutoff, the problem is not getting vacuum. The line to the switch connects to a white valve beside the master cylinder. There is no vacuum to this connection, but one inch away on the same line there is another connection which does have vacuum and when I connect the line there, the shutoff works perfectly.

So the question is, is there some sort of shutoff or one way valve at the vacuum connection? Is it just plugged? Should I drill it out, replace the valve or what? This white plastic valve looks like a one way valve to preserve brake vacuum when the engine is shut off.

Have corrected the problem at least partly. Blew some compressed air down the connection, now it has some vacuum but not as much as the connection next to it. Don't know if this is normal but don't think so. After doing this, still would not shut off so I traced a vacuum leak way on the right front of the car, due to a cracked rubber. Fixed that and now it shuts off but it takes 5 to 10 secs after you turn off the key for the engine to stop. This can't be right but I don't want to take a drill to the one way valve that controls the brake vacuum.