A Riser for a Volvo & OMC. On Volvos it was on Ризер(центр. расположение)r applications 1994 & Up. It is used on the GM V-6 & Small Block V-8, GM Big Block, and the Ford Small Block 302/351. OMC used it very rarely on Log Manifolds, but used it on Ризер(центр. расположение)r applications from 1989 & Up. It was used on the GM V-6 1991 & up, and all Ford Carbureted and GM V-8 Engines 1989 & Up.
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