The 500 CFM Holley two barrel carburetor is the "Old Guy Scott's" favorite circle track carb. Before the four barrel only rule was introduced in February 1957, the "Black Widow" used fuel injection and on some tracks under USAC and AAA sanctions they could use the two four barrel setup. In the photo's "Old Guy Scott" shows how to setup two Holley 500's on an early Edelbrock manifold, progressive linkage and all. This is not original "Black Widow", but for this tribute car, it has the right look and should "go like crazy". This is no easy set up to make.

View the photo's carefully. You don't want to end up ruining carburetors and manifolds in the process.