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Hi There:
If your a racer & like frequent plug changes( 30k-40k) tr55 are for you.
If for the street iridium plugs are best a/c delco p/n 41-985 gapped at .040
robsc501
Hi There:
If your a racer & like frequent plug changes( 30k-40k) tr55 are for you.
If for the street iridium plugs are best a/c delco p/n 41-985 gapped at .040
robsc501
Hi There:
If your a racer & like frequent plug changes( 30k-40k) tr55 are for you.
If for the street iridium plugs are best a/c delco p/n 41-985 gapped at .040
robsc501
yup while you're at it, do the GM performance wires