I have not but they sure look cool and probably cheaper than finding and rebuilding original Stombergs. Depending on your setup, you might consider three primary carbs. The secondaries have no choke or idle speed adjustment. A center primary might be great for a v8 but could make a 6 run rich on 3 and 4 and lean on outside cylinders. You could use a Stromberg carb adapter on a Clifford dual quad manifold and run two Demons (total 410 cfm). I think Vintagespeed makes an adapter to run two Strombergs on a single 4 barrel manifold. Love to see pics if you do use them.
Z
