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Got a 98 Twin turbo Vette and wanted to know what everyone uses for a plug I have running now a NGK "bp7ef S" but it is head to find those...can i not just use a stock NGK and gap it for .030. that is also the gap i am using that this time...it is what i was told a while back seems to be working well for me.
The plug you are looking for is BR7EF....those will be easy to find. .030 is good gap
That's not the same plug as he's asking for, but I would recommend it over what he's asking for. His part is the "TR7" projected plug BP7EFS, plug number 3626 and the BR7EF is 3346
hope this does not change anything. but i am only running around 8 to 10psi though the motor. close to all the other kits you can get that are not custom made. So you all say NGK 3346s or 1094s and what would the good be for running a 1049 colder plug?