i have a 1955 packard clipper custom and have purchased a holley 600cfm for it can anyone tell me what adaptor i will need to fit the standard manifold? cheers Tony
I would take a gasket for the stock carb and a gasket for the holley to the parts store and see if they have an adapter that would work... maybe look online and see if they give any dimensions.
I think you have a small base Carter WCFB, and need to put the large base Holley in its place. Here's an example of the type of adapter you might use: http://www.carburetion.net/products/2115-td2064.aspx I am told that the Edelbrock carburetors, which are versions of the Carter AFB, are made with both patterns. I imagine that one of those would bolt right onto your intake. Best of luck in your search.