MSD Ignition 31249 Custom Spark Plug Wire SetSpark Plug Wire Set Custom Spark Plug Wire Set Custom Spark Plug Wire Set; 8. 5mm; Fits SB Chevy w Low Profile Distributor; For Race Engines w Headers Or MSD Distributor; 90 Degree Boots; Red; SPECIFICATIONS: Boot Type: 90 Degree Color: Red Engine: Chevy Small Block Position: N A WARNING CA Proposition 65: No FEATURES: Less than 50 ohms per foot for superior spark Ferro magnetic impregnated core creates an effective EMI choke 40 ft. Of Conductor Wound