300 shot spark plugs

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08-20-2008, 06:19 PM

#21

BigDB

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i ordered some autolight AR93's Thanks for the replys

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08-20-2008, 10:25 PM

#22

nahasapeemapetalon

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autolights? who uses them?
i would say ngk is by far top choice.

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08-21-2008, 11:00 AM

#23

ShiznityZ28

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Auto lights work good but the ,melting point is higher so if you nip a plug you will nip a piston.... i have seen ngk's nipped ansd the piston is ok although its not a good thing its still nice to have 1 more point of failure before engine damage at least unti lyou get the tune spot on.

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08-23-2008, 02:29 PM

#24

blown69ls1

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Quote:

Originally Posted by BigDB

what plugs and heat range do I need for a 402 with 11.5-1 compression with Trick Flow heads and a 300 shot. The plug refrence chart doesnt list plugs for the Trick Flow heads for a LS1 just LT1's.

414ci, 350 fogger, 12.1, trick flow 225's, NGK R5724-9 plugs. Gap @ .35 and VP C16 fuel.