ok, after more research, I'm actually starting to lean more towards a "projected tip" plug for this application, since it is street driven. I have came to that conclusion after reading a comment over on one of the turbo forums, where a NGK Tech had responded and explained that, even with boost, it is better to run the projected tip in a street application, since it keeps the tip of the plug burned cleaner, keeping it from fouling. The coldest "Resistor" plug I can come up with in the NGK, with a tapered seat, .460" reach, 5/8" wrench is the NGK UR6(7773 Stock Number)plugs. The NGK Tech says it is 2 steps colder than stock Heat range, so that should work for me. I have since read quite a few people using them with great results in Street boosted applications as well. Anyone see any problems with the UR6 plug in this application?
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1978 Trans Am
Pump Gas 461 Stroker
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