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ron jeremy
09-29-07, 10:14 AM
buying new plugs whitch ones do i need 03 whipple cobra 17lbs boost
silver03cobra
09-29-07, 10:46 AM
I would do NGK TR7IX Not sure about the gap...

or

NGK TR6
wickedcobra
09-29-07, 12:16 PM
I have NGK TR6 in my Cobra
ron jeremy
09-29-07, 12:23 PM
whats the difference between going one step colder than 2 steps colder on the plug?
what do you think about those autolites AR94' s?
BurnTire
09-29-07, 12:25 PM
I use the NGK BR7EF. They are 2 steps colder and I have no idle or drivability issues.
santa_rosa_lt1
09-29-07, 04:22 PM
would the br7ef be too cold of a plug for 12lb of boost?
BurnTire
09-29-07, 04:50 PM
would the br7ef be too cold of a plug for 12lb of boost?

I have run as low as 15 PSI with no problems.

I can't see why it would be an issue. I have no problems just cruising around.
santa_rosa_lt1
09-29-07, 06:04 PM
right on then.thnks for the reply!!!!