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8 mm valve stem diameterThe COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development
25' barb and AN-16 Male inlet
Dual-Plane
Made of one mil aluminized material bonded to woven fiberglass
Davis Unified Ignition Dyna-Mod Module - 4 Pin 13460 8 mm valve stem diameterTheHigh Performance 4 Pin Dyna Module All V8, 6 Cylinder and 4 Cylinder engines utilizing our DUI Distributor or GM HEI Distributor Non Computer Controlled For a crisper, smoother running engine, replace your stock HEI module with the Dyna Mod. The Dyna Mod has more "electronic dwell" in it to provide more coil saturation time. The additional saturation time allows the coil to produce a more intense spark. Our Street Strip and Racing D. U. I.
