If you are thinking of using http://www.summitracing.com/parts/SUM-830452-1/ You will need a Tach adapter since your engine is DIS. The msd version will work without an adapter http://www.summitracing.com/parts/MSD-8969/
If you are thinking of using http://www.summitracing.com/parts/SUM-830452-1/ You will need a Tach adapter since your engine is DIS. The msd version will work without an adapter http://www.summitracing.com/parts/MSD-8969/
2010 Silverado 4.8 Ext Cab 4x4
Cam, Stall, 4.88's