I recently switched my '87 Comanche's plugs to NGK #2288 with dual grounds (I had Autolite 985s, NGK TR5 and TR5-5 before with the last making very bad ping). The result was an increase in fuel economy (2 mpg based on 4 tanks so far) and almost zero ping with no EGR valve, regular unleaded gas no cat (cannister is there but left it's guts in the old muffler) and 240,000 miles on the motor. http://partimages2.genpt.com/partimages/310493.jpg _________________________________________________________________ http://newlivehotmail.com _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list