Hi all. I am about to put a set of PULSTAR spark plugs in my '89, C4, L98 and I am woundering if I should replace the spark plug wires ?  The car has just over 50K miles on it and except for the harmonics from the exhaust, it runs well.  I've checked wire prices and they run from $20 to $318 !!
Anybody have any suggestions as to what works and what to stay away from.....
      Thanks....  

If it was me I likely would replace the plug wires,dist. cap and rotor and call it maintenance  I've seen wires go much longer and I've seen them go less. At 50k IMO  it's not a bad idea just for peace of mind. One more thing (if you haven't done it already) that gets neglected is the throttle body--it's a good idea to clean inside the bore and the blades periodically--mine gets done about once a year--that way it never gets REALLY NASTY. You may find it easier if it's never been cleaned to remove it for the first cleaning---throttle cleaner,some rags and a little time will work wonders. Ooops I've gotten long winded  Short answer---Yep I'd replace the wires and then some !

I'll agree with the use of AC/Delco wires. I bought a set of wires from a parts house for my '85 that wouldn't even ohm out NEW! Since I already had them, adn they were "Lifetime Warranty", I put them on. Needless to say, I had a few more misses than I had originally. A set of new AC wires fixed it right up.
Other name brand wires may be just as good/better, but I chose to go with the OEM supplier.

I took off a set of new MSD wires and put on a set of Magnecor wires.
They are racing wires, made for high temp applications, made for removing and reinstalling, and have no radio interference.

I have the set of 8mm red MSD's I would sell.......comes off my 96.





Jim

i have msd wires on my 90 and they really good. i stick with the ac plugs though as i think they perform better. my .02