I was wondering if anybody here new any info on this intake manifold. It is a aluminum single plane high rise and has Roush stamped on it. It also has part # m9424a331, which is a old Ford Motorsport part number I believe. I searched my catalogues back to 89 but had no luck. I thought it was for a cleveland but the runners sit higher. Tried it on a windsor, not even close. It seems to fit the cleveland the best but will not work with my heads. Here is a pic of it just sittin on the cleveland

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Try this again

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This is what I found out so far if anyone is interested. The m9424a331 is a 351 cleveland manifold. It was built to be used with high port heads that Yates and SVO produced for high rpms (strictly racing). You would lose to much torque at low rpm to justify using them on the street. These heads were aluminum but they made some cast iron ones in the early 70s on the trans am cars but are very rare of course. There is companys that still reproduce the heads but they are quite costly.

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