with cash on top on your end , my head has all the same parts and is ported minus my ported type r throttle body to your skunk2 and my portmatched ctr manifold to your skunk 2 , would need 400 on top after i make sure the oversized valves were done rite and sunk into the head at least .050 with 0.050 shimms in the bucket , if not u have a worthless head as u will have valve to valve clearance problem with the size of cams i will be running on the nitrous setup untill i boost my setup