old mallory hyfire ign. box question

[musclcar]

i've got an old but still good mallory hyfire #29026 ignition amplifier box. i've pretty much figured out the wiring to my unilite distributor but not sure on where the tach lead hook up goes. can anyone clear this up for me http://www.yenko.net/ubbthreads/images/graemlins/3gears.gif

[JoeG]

Try this-- web page (http://www.centuryperformance.com/mallory/mallorytech.asp)