Angled 4 hole, 4 barrel, carb spacer for the dirt late model or modified circle track race car.. Spacer is angled down-ward towards the left front and upwards on the right side. Designed to correct hesitations caused by poor fuel distribution and improve throttle response and torque. Spacer is 2" tall on the right rear, 1 3/4" on the right front, 1 9/16" on the left rear and 1 3/8" on the left front.. Spacers like this WORK!!