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Spark Plug Recommendations

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Jas89TTA

Member
Joined
Mar 10, 2003
Messages
385
What plugs would be best of my TTA and what gap? I was running Ac-Delco R42LTS gapped at .032 Not sure if this would be the ones to run since my car's not stock. I was wondering if I may need a hotter/colder plug than the stock ones. My set up is T66 bb turbo, 72# inj, alky, TTA champion ported heads and intake, THDP, AFPR at 42psi, 210/210 roller cam, 70mm TB with matching doghouse and running about 22-25 #'s of boost. I had a issue with the #2 cylinder, the exhaust seat came out and not sure if maybe the plugs were the wrong heat range. Thanks, Jason
 
I run the same R42LTS plugs in all of mine, gapped .030 in my GTA up to 27psi no problems :)

HTH,
Steve
 
R42LTS ditto.. or the NGK TR5.. or the NGK TR6 a little colder.
 
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