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3,083 Posts
IMO the plus 4's are totally pointless...
I'm running stock delco wires, cap and rotor with 99 cent delco plugs. I got 17.85 mpg on my last tank of gas, on a 10 year old truck with big ass tires and tall gears. And the plugs are a year and a half old.
I'm running stock delco wires, cap and rotor with 99 cent delco plugs. I got 17.85 mpg on my last tank of gas, on a 10 year old truck with big ass tires and tall gears. And the plugs are a year and a half old.