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I am going to "update" what I have in the Vette, but need some advice. The last Plug Wires I am not so sure what I have in there, possibly MSD. The Spark Plugs are for sure, NGK TR55. After speaking with the Service Tech, he came up with two DIFFERENT part numbers for both. Can anyone validate the difference and what are the CORRECT ONES I should go with?
I have an SLP Forged 402, G6X3 Cam, AFR 225 Heads, Upgraded Injectors (Unsure of Lb), B & B BUllets, and No Cats.
This is what I found ONLINE which was recommended for my car thru GMPARTSHOUSE: (Gene Culley's Website)
12621258/ GM AC Delco Iridium Spark Plugs $10.72 (Dealer) / $6.43 ONLINE
----------------------------------------------------------------- By using my VIN Number, he stated THIS is what I should be using:
I'm not a fan of all the new material plugs----To me yes they add life--buts that's it NO HP---Irrid or Plat plugs say you change them at 100K of driving But I don't know any well respecting motor head that can not remove them sooner
As far as plug wire go Not a fan of MSD wires as in the past the coil boots were too thick and you don't get a good SNAP when they are installed---and they have been known to pop off--------I like the GM Performance Red wires best--- and the plain old NGK copper cored TR55------TR55's should last 30k easily and if you know hoe to read plugs they are simply the best and easiest to read when new
we don't list plugs on our website, but if you want a set of delcos just shoot me over an email. Johnny@mtiracing.com
we can get a set from one of our distributors, and send them in the box with the wires.
MSD wires are junk. I had a set develop a miss in less than 1000 miles. After much research, I found many others have had the same problems. Unfortunately, I let someone talk me into the MSDs. I swapped back to Taylors and the miss went away. We run Taylors on everything now and I've never had a problem with a set on anything. A set of Sriro Pros are only $54 shipped for a C5.