[Rory McNeil]

Many years ago there were kits available to provide some of the accelerator pump shot to go into the secondary side of vac sec Holleys via 2 small tubes that ran thru 2 holes between the air horn "wall" , just like the holes in that photo. The 2 tubes were pressed into a modified pump squirter. My guess was that so many guys didn`t think the vac secondaries were working, so they stuck a screw in the secondary slot, which would cause a major bog. These kits were a crutch to make this mickey mouse "mod" more driver friendly.