The combination is a .030 440 with 270 heads , A trick flow max wedge intake, a 4150 series 1000cfm carb, the cam is a Hughes engines 260/264 @ .050 cam with 1.6 rockers , 2" headers , 3" exhaust system. The car has 4.30 gear , 9x30 tires, a dynamic brand 9 " converter that flashes 5200-5300 range . Car weighs 3655 with me in it.
Using the Wallace calculator the engine is in the 625 hp range . The 270 heads picked up about 3.5 mph over the 240 heads , same track with similar weather conditions.