Read through this
5.3 with Z06 cam N/A?
Also keep in mind if you want the z06 can that means new non dod lifters might as well get new valve springs gaskets and to be on the safe side new timing set and get oil pump while you're at it. That's a nice chunk of change and not to mention you'll want the after market heads or have your 243's ported all that with our garbage stock manifolds....better get headers and a ls6 intake to utilize the combo efficently.....see where I'm going with this? If I were you start with supporting mods like maf tb intake headers tune the **** out of it and work your way in the engine from there
