Tilt Shim - 2 Barrel C

We're not sure which carb this fits but it looks to be about 5 degrees. Dimensions:
Length: 5-1/4"
Width: 2-3/4"
Holes at low end center to center: 5-3/16"
Holes at high end center to center: 5-3/16"
Tilt shim, 2 gaskets and 4 bolts