Never did get the dual Sniper setup to run. Tried them on a different engine and still had problems. Switched back and forth between carbs and the dual Snipers and the carbs worked but the dual Sniper setup didn't. Came to the preliminary conclusion that the nerf snipers setup is very sensitive to the design of the intake manifold plenum. Currently we're waiting for a new intake manifold and then we'll run another dyno test.