What about Original Poster who wants the 350 CFM heads for some unknown combo unknown budget? Forget about him and go off on tangents new hemis are fast, 1,000 hp on stock blocks, no one looks at the late models when out cruising, late models faster then the classics, so and so is smart, so and so is full of it, chinese tubos, fast on a chevy budget, turtles ect ect ect.....
