BTR VALVE SPRING HEIGHT MIC – GEN III HEMI – BTRHM-HEMI
$125.00BTR VALVE SPRING HEIGHT MIC – GEN III HEMI – BTRHM-HEMI The new BTR spring height mic for Gen III HEMI engines has several design changes that make it superior. These include more desirable .100″ height change per revolution which reduces the chances of reading errors associated with spring height mics that have .050″ height…