Every manifold with the exception of possibly the SP2P will support 400 HP. Almost every manifold will support 500 HP with some work. Many of the available manifolds will feed a 600 HP motor. The Victor will make well over 1k HP without welding. There's more than one cast manifold out there that will make more than 1,100 HP without welding. I feel we are fortunate to have so many choices. Maybe I look at things differently, but I'd pick one and finish the project.
Don't get me wrong, I wish everything was perfect and would "bolt on" but in my world that is seldom the case.
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