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40mm Weber 40 mm IDF IDA Riser Aluminum Spacer 2"
This auction is for two aluminum 2" tall risers that fit the Weber 40 IDF and 40 IDA carbs, add a little clearance and performance the cheap way.
Weber 40 IDA 40 IDF MM Riser VW Pantera Ford 427 Shelby Cobra Phenolic 2 Pack
This is a pair of 1/4" phenolic carb insulators that help prevent carburetor boiling or heat soak, the cooler it is the more power it makes.
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