Tune up questions on 5.3 vortec
12-09-2013, 07:14 PM
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Tune up questions on 5.3 vortec I have a 5.3 vortec on an 06 silverado I recently did a tune up with a c delco iridium professional plugs and msd wires I got from summit racing and I noticed a slight difference I was starting to waste jus a lil bite more gas then with the plugs and wires it had before is this normal?
