-= THESE PiC'S and CLiPS WERE TAKEN FROM many user's to join them in ONE CLiP ! =- SiLVERADO 427 ss , owner : PACO Engine Modifications: - K&N High-Flow Intake (#63-3058) - 600 Horsepower 2006 Z06 LS7 427ci - 90mm intake and heads ported and polished - Speedtech dry nitrous and plate nitrous syst...