Holley Diaphragm Housing Cover HO20-28

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Diaphragm Housing CoverSuit Holley With 2 x 4BBL ApplicationBrand: HOLLEYPart Number: HO20-28Description: Cover-Diaphragm Housing To Balanace Secondary Operations On a 2 x 4 bbl. A pplication Features: Cover-Diaphragm Housing Allows vacuum hookup between carburetors formore even and balanced secondary operation. Show more