Where can you buy Champion Race plugs? Also, any recommendation as to what heat range to run? Our dyno guy told us (after all day on the dyno) to pull out our Bosch Platinums and replace with Champion Race C57C. I'm reading about them online (the little info there is) and they are talking about 13:1 alcohol cars.
We're running a 10.25:1 408 stroker making just over 500 horse and 540lb-ft. AFR 185cc heads, 750cfm Speed Demon (manual seconds), and Edl RPM Air-Gap intake.
Any recommendations?? (let the flooding begin......)