What spark plug for turbo 5.4
Whats the best spark plug for a turbo charged 5.4 with 8psi, pump gas, stock coils and 8.5-1 compression. I figured on using the stock Lightning plug but which brand and at what gap? Also what I know as I up the boost I will need a colder plug, coils & msd stacker. So if you could give me the brand names, part number and heat range(stock, 1 step colder ect...) I would greatly appreciate it.
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 Momentum is everything till you drive off a cliff!
2003 Mustang GT, 5.4L Triton V8(LOL), Comp 270's gears and springs, Intercooled Precision T63, 42lb injectors, Flowmaster 3.5" Single Chamber, B&M Holeshot 3000, Racegate, Sniper Commando Tuning, Kenne Bell BAP,BG Mighty Sumo pump, MSD MOD6, LM1 wideband, Best e.t, 7.67@92mph in the 1/8th. on MT drag radials. No dyno tune yet.
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