best spark plugs?
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this is a LQ9 6.0L LS1, 11:1 compression ratio, 243 casting heads, 110 octane fuel, 750 carb, manifold dual plane, pistons and crank stock, camshaft 236/242 duration , LS:113, MSD PN 6010, using MSD spark plug wires, perf headers.
this is a colorado chevy truck.
this is a colorado chevy truck.