Pontiac / Chevy 10 Rolled Degree High Port Heads (1 Set of 2 Cylinder heads) Fits Small Block Chevy Block. Last Pair of Custom Factory Race heads for a program similar to the Buick / Chevy Heads. They have a semi finished porting and valve job. They will require a custom manifold and custom length valves. Only 3 sets ever made 2 sets are owned by GM Designed and Developed by EPD Racing Heads. It appears they are setup for a 2.100 x 1.625 valves and the chambers are setup for about a 4.030+ bore and the chamber and head design is based on a 10 degree dart Buick other…