i have a gas head thats fully built with like 1000mile on it, i am using my type r head an selling this gsr head, but it got full port and polist by port flow, supertech valves, edlebock springs a retainers and everything else. i got over$ 1500 in it, selling for $800 shipped with skunk 2 intake mani, if intersted let me know. 740-252-6086
