MSD 8910 Factory Ignition Module Tachometer Adapter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Correct operation of voltage triggered tach or EFI</li><li>Use non-current limiting ignitions OE w/ballast</li><li>Easy mounting and installation</li><li>Simulates the coil signal</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31FT37DH9NL.jpg" noproxy>