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Reply to "Seeking Information About the Manussen Dual Supercharger Induction (Magnecharger)"

I know of four different guys that ran them on 351-Cs. One used aluminum shear-studs to mount the blower to the intake, and sure enough- on one club run down south, the thing sneezed and lifted the blower. Took him a couple of hours to change studs but that was the only damage. On many roots type blowers, they use burst panels or some sort of valving to protect the blower from backfires, but with low-profile mounts, there may not be room, so shear-studs are a substitute.

You're moving a lot of air with these and the big danger is going lean. I would suggest a pair of 50 DCOEs or larger if you can find them. All the Ford kits were stagger-jetted on a dyno to get them to run right. And under even 6psi, crankcase pressurization used to blow oil mist past the main seals, eventually coating the engine... with no visible leaks. Not as easy an add-on as the brochures say.

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