Does anyone know how to hook up a Sun #SST- 707 Super Tach to and GM HEI ignition system. Do you connect to the "tack" tab on the distrubor or doyou need the Sun EB-9A Transmitter?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=016&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=260219330847&rd=1

Not sure what type of tach you have there from your model #, but you might try here:

http://sunpro.com/product_category.php?id=288&PHPSESSID=e18272e54a4175bab0073729024657f0

...you can down load the installation instructions for various models.

that tach needs the transmitter to work. hook appropriately to the "tach" contact on the distributor.

Not sure what type of tach you have there from your model #, but you might try here:

http://sunpro.com/product_category.php?id=288&PHPSESSID=e18272e54a4175bab0073729024657f0

...you can down load the installation instructions for various models.

Tach is a Sun #SST- 707 Super Tach

The instructions given on that site is for the SUN Pro Line Super Tach II and III

This is a vintage Super Tach. The stumbling point is the new GM HEI Ignition system

This is the instructions for the transmitter.
"SUN" Tach ST-500 SST-700 Models RC SST and Transmitter EB (http://www.leverfamilysite.com/images/PDF_Files/Sun_Tach_ST-500_SST-700_Models_%20RC_SST_and%20Transmitter_EB.pdf)
The problem here is it only shows it being hooked up top a points system?????????????