Racecar stuff. I don’t understand your cylinder head choice. That a lot of compression and cam for any Street driven vehicle; some people would say excessive. Vortecs have a modern heart shaped combustion chamber, this lets you run less timing, and of course cheaper fuel. They flow better than any cast iron head. And are very reasonably priced on Car-parts.com, an online salvage yard listing. They won’t accept that much lift on the cam, stock, but they run fine with any cheap small hydraulic cam. My son’s mud truck runs a 383’. Flattops and Vortecs. And a tiny generic cam, I think it’s a Perfect Circle product. Idles at about 800 rpm with 18” of vacuum. It pulls hard to 5800 rpm and runs fine on regular pump gas. This combo in a 3200lb car would pull highway gears and a stock converter easily. I know this probably isn’t what you’re looking for, but it is about the cheapest HP available.
