[Gach]

I would always go with round ports, and buy headers. D-ports and manifolds are going to be limited. A set of round port heads and a nice Hydraulic cam will make 500 hp, like falling out of a tree. 500 hp in street car is killer. And crazy street able. Thats just me. Are there good D-port combo out there sure, but you can bet they’ve ported. But E-head out of the box will make 500 hp and you don’t need a hydraulic roller cam.