i had tr 55s had to replace em like 3 times then went to tr6s and now the kar just idles and vibrates your ***, i might just go with the ac delcos again to see how it is, i had p0300 couple times as well as the front 02 going bad.

are ac delco still alright to run with my mods???? what kind of ac delco plug should i go??? or should i stick with tr55s? i have taylor wires or should i go gm hi performance wires or MSD... sum info please

 

TR55s should not cause you any misfires by themselves. They are very popular plugs for the LS1s and many of us use them. They should last 25-30k miles.

Maybe your issue lies elsewhere, like the wires. I'd stick with either stock wires or the GMPP wires. If you insist on aftermarket wires, try the MSDs.

Hope that helps.

 

ac delco iriduims are very good plugs and dont get enough praise....i run them with no problem, i also have accel 8mm wires and they work fine to.....id say try the ac delcos...both are pretty good plugs

 

I have ac delcos now and like them, but I may start using tr55s b/c I change them every other year and they are cheap and good. MSD wire for 50bucks look good and perform. WS6 Store Wires plus plugs(tr55s) 70bucks!

 

where do you get gmpp wires

 

I know you can get them through GM parts direct; so probably also at any GM dealer.

 

how much are they?