I have a 00 Z28. my mods are just Lt-headers, y-pipe, straight pipe exhaust, SS hood, SLP MAF Sensor, SLP cold air intake, SLP lid, 3.73 gears, and computer tunning. I was going to buy 1.7 ratio rocker arms, andI was thinking on buying a cam, butI want something that I can use most of my stock equipment. I was thinking on buy an LS6 cambecause I was told that I would only have to change out the springs.