Let the rebuild begin. The top end was fine after my mishap, but I chose to go the upgrade route and sell off my old set up. The result will be a BIG step up. First, Profiler 205 cylinder heads. According to the flow sheets on these heads, the intake flows 532cfm and the exhaust flows 347cfm, both at .900 lift. For comparison, my P51s flowed 420cfm on the intake and 263cfm on the exhaust. When laid flat, the bottom of the intake port on the P51s was about a 1/2 inch above the deck. With these the bottom of the intake port is 2 3/8 inches above the deck. The intake port has been raised significantly, which allows a straight shot to the intake valve. The valves themselves are titanium, and the valve sizes are 2.45 intake / 1.88 exhaust. The P51s had 2.30 intake and 1.76 exhaust. I chose a 4.600 bore X 4.500 stroke for a 598. *The cylinder head is a profiler 205. *Sheetmetal intake with twin dominators. * Parts list: Block: *Ford A460 block 4.600 bore (same one I had before) Crank: *Crower billet crank 4.500 stroke Connecting rods: Oliver Pistons: *Diamond, 16:1 compression, lightened to 599 grams. Cylinder Heads: *Profiler 205 cylinder heads (freshened by Uncle Charlie) - already set up with titanium valves 2.45/1.88, retainers, Comp valve springs Camshaft: solid roller, specs to follow Jesel roller rockers with one piece stands Intake manifold -- Hogan sheet metal intake. Carbs: *9377's 2X4 not sure what cfm they will end up after being gone through by the Carb Shop. * Danny Bee belt drive Meziere Electric water pump MSD crank trigger ignition / 7AL2 plus / Belt Drive Billet distributer Moroso vacuum pump Moroso external oil pump Stef's Oil Pan Goal is 1200+hp all motor. Motor is going to be a 598 (4.600 bore X 4.500 stroke).