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The Moroso Ultra spark plug wire set for SBC under-header routing features 135° plug boots with HEI-compatible connectors in red, intended for small-block Chevy engines that require angled boots to clear headers placed above the plug area. It’s aimed at installations where under-header clearance and HEI distributor compatibility are both considerations, providing boot geometry suited to those layouts.
Moroso SBC Under Header 135 Deg Plug HEI Ultra Spark Plug Wire Set - Red
