Do I need a new HEI for Tach Connection?

[Rich72C10]

My 72 C10 350/TH350 came with a HEI Distributor from the previous owner but I don't know the make or model to research it. Far as I know it works perfectly fine. Only number is "W11 14" stamped on it. Photos attached.

There doesn't seem to be a connection for a Tach - do I need to buy a new [better?] unit? Or am I missing something with this setup?

Thinking the worst I am looking at this on Speedway.com
MSD 8362 Street Fire Chevy V8 GM HEI Distributor $177 and then a pigtail for 12v and Tach for $13. Which is pretty much the max I want to go. I am not keen of pulling a HEI from the junk yard... I am not looking for crazy performance if I need a new one, I am keeping the truck more or less stock (no racing / perhaps a daily driver).

Going to suck when I get my truck back from my engine/trans rebuild and I have no place to connect my new Tach Kit to that I've ordered from GMC Paul's!