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Choosing a colder spark plug
Okay guys help me out here. I posted this over on the Gasholes site but it was either to complicated or everyone was asleep.
I think I need to step down my spark plug temp range. My builder installed Autolite 3924 and I want to go down in temp to a colder plug. Assuming I wanted to stay with Autolites would I get a 3923 or 3922? Or if I was using Motorcraft #4 would a #3 be the next colder plug? George, If I was still using your favorite plugs ACCEL 716 what would be the next colder plug? Engine Vitals: 427 Center Oiler 11.6 : 1 Compression Speed Demon Carb 750 Fuel 110 octane Sunoco MSD-6AL-Billet Dist-Blaster Coil-8 mm Wires Edelbrock Heads P&P, Blue Thunder Intake, Sig Erson Roller Rockers-Comp Cams Solid 607 Lift & 542 Dur 8 Deg Sep-Eagle H-Beam Rods, Thanks. |
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