Can't say i've found a vacuum leak..yet. All hoses wiring as well as grounds look properly snug and secure.
I'm going to try this over the weekend. I don't know the age of the plugs, wires, dizzy, cap, rotor points as well as coil. Even though I don't know for sure that these are the culprit i'm tempted to replace all this and start fresh regardless.
In addition to removing the WP i also removed the air pump and diverter valve that weren't connected to anything. PO had decommissioned smog equipment but left everything in place (without being hooked up) in the event someone needed to re-employ. i removed the pump, the diverter valve connected to it and the belt.
I wonder if by removing the air pump belt this has now thrown off the timing considering there's less pulling on the engine?