Just something to think about, Patriot Performance in Rainbow City AL, has a great deal, they take a brand new vortec head, put 2.02, 1.60 stainless valves, screw in studs, guideplates and and big springs, bowl blend under the valves, and they also drill and tap the heads where you can install the old style valve covers or the centerbolt ones and they do the intake the same way, i bought a set about 3 years ago for 695.00, this heads will support 450hp easy, time you take a set of heads that has a million miles and do all that work, look at where you will be, and everything about these are brand new, even the bare head