The Big End Dominator shear plate provides a low pressure under the throttle plates for improved signal to the booster while assisting with reversion from the overlap of the camshaft. The 7-degree taper and the sharp edge have been engineered to make the Dominator perform at its peak and to gain the most power from your engine combination. Serves as a safety plate as well. Clear anodized 1/2" thick 6061-T6 aircraft aluminum. Made in the USA.