i have recently built this engine. A 30over 440 with trick flow 240 heads, a hughes engine ported trick flow intake manifold, 254I / 260E @.050 hughes flat tappet cam .11.7:1 compression using 110 race fuel. Through a 1000 cfm 4150 pro systems carb. Car weighs 3700 with me in it .Car has gone 10.55 @ 126mph through the mufflers and a k&n 4in air filter.