should the vac advance be pointing all the way back clock wise when putting spark plug wires in to cap for correct fireing order to point rotor to number one in dist cap and at tdc on crank shaft pulley before cranking when you you are standing in front of engine? In other words where should the vac advance point in order to correcttly install wire leads into cap when installing distributer on 1995 land rover 3.9 liter????? should you then point rotor at number one in cap while tdc is on crank is pointing at mark on crank shaft pulley or should you point time mark at some type degree on crank shaft pulley??? thanks