Keg intake to 4 bbl m1 intake

cudaFS said

I'm still not sure about the efi's out there, you see so many used ones for sale, makes me wonder how well they actually run. lots of complaints and technical problems, all brands

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With the factory magnum cam and springs there will be little to no gain changing intakes from the beer barrel to really anything. It’s a pretty good match for what the magnums were designed to do. Now, if you upgrade the cam and springs there is lots to be had.