So is this the best solution? I've recently developed this issue and it was at its worse this morning. The other day I pulled the cap and cleaned up the rotor and contacts in the cap, but today it started rough, albeit in the first few starter revs, then under even mild accelerations it would miss and stutter bad, had to feather it till it was happy. Went away after maybe 5 min of driving; same thing happened before I cleaned the cap but would only stutter under maybe two from stop accelerations before it was gone and only on wet days like today where its very damp and foggy.
Is just spraying down the cap with WD once in a while enough? Would a silicone based spray be more effective? What's the best way to rule out the plug wires as contributing to the issue? Any permanent solutions to keeping the moisture out of the cap?