Ok, so the MSD wires is the way to go, what about spark plugs? any suggestions? I was thinking about just getting ACDELCO.
2001 Silverado Z71, 5.3L, K&N cold air intake, flexalite electric cooling fan, Edelbrock shorty headers, Amsoil synthetic oil, dual exhaust flow master 40 series muffler, Hypertech max energy programmer, MSD Ignition plug wires.
A local performance shop compared some plugs on a dyno. check it out http://www.ls1gto.com/forums/showthr...ht=spark+plugs
2009 Sierra 1500 SLE Ext Cab 4x4 5.3L 3.73 gears Steel Gray
20" Liquidmetal Magmas
275/55/20 CooperZeons
Gibson catback
Diablo Sport tuner
ReadyLift 2.25" leveling kit
Volant CAI
Bed Rug
Billet grille
2004 Pontiac GTO - Long Tube Headers,CAI, Magnaflow catback, Comp custom grind cam, Pedders Suspension, GMM race shifter - 392 whp
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