Not only do separators have to keep spark plug wires away from engine heat sources, they also have to keep the plug wires far enough apart to prevent inductive crossfire and actual spark loss. MSD wire separators will clean up your vehicle.
Pro Clamps feature secure grooves for 8.5 wires and a top bracket that snaps to sandwich the wires in place. Stand alone or can be bolted down. Kit contains two 4-wire, two 3-wire and four 2-wire assemblies.