Has anyone heard anything on these plugs, or been using them. I just came across them today and am thinking about using them to replace the bosch platnum +4's that I already have in my 351. Are they worth 6 bucks a pop or should I keep what I've got. TY

 

I'm not disin NGK's or BOSCH"S, but i have friends with some awesomly fast rides, one is a low 9's 1/4 ml. street leagle ride, and hes 3 time track champ. and has had his car featured in super ford mag. all these guys including my self run autolites,
so it hard to convince me any of them or worth the money, IMOP if i were gona upgrade it would be autolites platinum version of there standard plug.
it's human nature that for some reason people think if it cost more it has to be better! bottom line is either the plug fires or it dosent! Just my thoughts. DW

 

DW's just about hit it perfect here. You don't need platinum, in fact the platinum plug will delaminate under the stress of a high energy ignition. The only place where platinum or irridium is of benefit is if the OEM system requires them. Anything else is just a waste of money. I do prefer NGK's over Motorcraft or Autolite, the v-shaped electrode seems to help a bit. Instead of buying expensive plugs, just gap yours as much as possible, because that's the only impact that a spark plug should have on performance. TK

 

I've said it a million times, my 351 eats plugs for lunch, and does it even worse when they are not motorcraft.

 

Thanks guys looks like when my new plug wires come in the bosch are gone for some motorcraft or autolites maybe the standard ngk's with the split tip