225 slant 6 intake/header

Not to get off track with the original post, but the only slant that I would put dual Dutra’s on would be a truck. They are heavy as hell, and for the money spent, you still need fabricated down pipes. They are so thick they probably would last about forever, so dual Dutra’s have that going for them.
This is true, but pair those with a set of side draft carbs and it eliminates the intake manifold all together so it’s probably about even on weight. If it’s a gain it’s probably not much. For that build being almost 300hp out of a slant six I’d drop that in a small a body and go like mad