A-Team Performance LT1 LT4 8mm Spark Plug Wires Compatible with GM Chevy Pontiac Z28 Camaro Corvette Firebird Impala Caprice 1992-1997 5.7L 4.3L A-Team Performance spark plugs are high premium quality spark plugs. It fits All Optispark Distributors HEI505BK and HEI507BK.…