Need help!!! What are my spark plugs supposed to be gapped at?

[NeeD4SpeeD]

I'm doing my ignition wires and sparks and i bpought ngk tr-55 from speed inc. and dont know what the gapping is on them? I have an 02 WS6 so what should i gap the sparks at or do they come pre gapped??

[rbob93]

I gap mine @.055

[2001NBMZ28]

NGK's site says .060, but I gap mine .055

[LS1-450]

Any major mod's. such as head/cam or forced induction? If not, .055. If so, then .041to .045. If you're gap is too big, there will likely be a back fire on deceleration. If no backfire, you're good.

[NeeD4SpeeD]

Nope no head/cam.... though i will be gettin both in march so i guess when the time comes around i'll need to re-gap em!!

Thanks everyone for your help i installed the 10.4mm taylor 09 race wires with the NGK TR-55 and runs frigen awesome!!!