Used Sanderson Ceramic coated headers. These are great headers but not intended for an all out high performance small block. These headers are "block hugger" like headers that clear 4 speed linkages and being short there are no ground clearance issues. These were used on a summer only '66 chevelle for a short time. They have thick flanges and do not require header gaskets, just hig temp silicone for sealing. Also included are extension pipes that might help siimplify getting these tied into your dual exhaust.