Hey there, Fixit58. I went into NAPA asking for the AC 44-5 (per spec), and the parts guy, who is a second-generation store owner, said he couldn't get those but he could get the Autolites, and "there's not much difference because they're all made by NGK these days". (I'm guessing the 'N' is for Nippon, i.e., Japan). So I said "ok". But I do think I'll return them (never installed and in clean boxes), and look for the exact recommended plug. But I wouldn't think it matters a great deal. ???
