'93 88spl starts to tick like it is arcing somewhere but stops if I advance throttle just enough to change timing rod but not fuel flow. Does it around 2000 rpm.
Also used to run 5500 rpm wot and now only 4500. Sometimes it clears up and hits 5500 but when it was doing this and I hit a wake it dropped back down to 4500.
I was thinking high speed jet on the rpm problem but that would not explain ticking.
I ran on muffs in the dark and see very little plug wire arcs (normal stuff).
I checked all grounds and coil connections but it i hard to isolate where ticking is coming from.
It really does not feel like I'm loosing a full cylinder as when I pull a plug it runs very rough and does not do that while ticking or running wot.
motor actually runs great.