Hi Guys Iam Having Problems With My 2005 C6 Z51,when I Drive It Pass 2000rpm Or I Punch On The Gas It Starts To Fail Like If It Doesnt Have Gas Or Something Ive Taken It To 2 Mechanic And They Have No Idea,please If You Know What It Can Be Please Let Me Know,just In Case The Mods On My Car Are Vararam Intake And A Shot Of 100 Of Nos,thanks Guys