[DanEC]

Reportedly the dual quad cars used wedge plates under the carb. Not sure about the single quad cars but they may have also. I've found the wedge plates at Summit and Jegs by Moroso and others. I thought I remembered the Moroso one to be a 4 degree wedge but maybe they are 5 deg. They are fairly thick - 3/4 inch at the large end, again from memory. So you need some hood clearance. I thought the Moroso plate was 4 holes but maybe my memory is faulty. In theory the spacers should boost torque very slightly and will help keep the carb a little cooler - Shouldn't hurt performance.