In Reply to: Spark Plug Question. (m) posted by Dinan M3 on October 04, 2000 at 14:27:34:
At speed, fuel pressure is enough to send fuel even through a fairly dirty filter. With 27k on the car, you're ready for one anyway. About a 1/2 hour job.
As far as plugs, it's a fairly easy and inexpensive try too. And with the mileage and type of induction you have, I'd venture to suggest changing plugs every 12k. My supercharged import ate NGK plugs about every 12k (as in dulled the "v" groove significantly."