4" tall carb riser for standard 3 bolt Holley & Stromberg type carbs.
This is the original Weiand-Burns riser from the late 40's. I happened to find and restore the original pattern and put it back to work. After Weiand stopped offering the 2x2 tall flathead intakes these were the risers offered to customers who wanted the tall intake, Burns sold Weiand this riser.
