Spark Plug FI Question
no sense in chaging them early their only a 20 minute job.
The colder plugs tend to foul easily, so you must be careful about how rich you run for part throttle and warm-up. To keep them clean you want to stay on the high side of stoich for light throttle/idle when warm, and no richer than about 13.0 during warm-up.
A normal cold-start cycle can foul cold plugs pretty quickly.

