WHat plugs are you running
Dont know about the F-bodies, but the C5's use platinums that have a "puck" on the inside of the outer electrode that pops off on a LOT of C5's screwing up the gap.
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MGySgt USMC
<strong>NGK TR55s. Hey steve, I had the worst luck with the Bosch Platinum +4 plugs. My TA ran like crap and they caused what felt like a vibration in the drive train. When I installed the NGKs, everything was back to normal. It's wierd how different LS1s react differently to changes.
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MGySgt USMC</strong><hr></blockquote>
Yeah, that IS weird. The 'Vette purrs like a kitten with them. <img src="images/icons/smile.gif" border="0">
Steve





