Jason Wilkerson <wilke_jb at yahoo.com> writes: > Bosch H7DCO(original spec plug) - . - Ok, the autolites work This is a case where "more" as in expensive, is NOT a good thing. Go with the simple, cheap, normal plug. That's what the V8Q likes best, at least in the 3.6L, no experience with the 4.2L (unfortunately.) BCNU, http://www.geocities.com/cobramsri/