THE TICKING AND MISFIRING MAY NOT BE RELATED,IT IS COMMON FOR 116/117 VALVE TRAINS TO HAVE TICKING THAT COMES AND GOES.SEEMS THE ROTATORS INTERMITTANTLY COME IN CONTACT WITH THE HEAD BOSSES THEY ARE RECESSED INTO,NOT A MAJOR MALFUNCTION.
FOR MISFIRE CHECK CONDITION OF WIRES AND CONNECTORS,INJECTORS FOR CLEANLINESS,AND FOR VACUUM LEAKS. M.F.