Technical 346 Caddy Oil Pressure Line

Trying to hook up a mechanical oil pressure gauge to a 346 Cad motor and can't seem to find where on the engine to run the copper line to. Any suggestions? Pics?

Thanks!

 

I can take a pic tomorrow AM if nobody replies.

 

Appreciate it. Thank you

 

http://forums.cadillaclasalleclub.org/index.php?topic=129407.0

 

cool motor, I have one, in a 37 Cadillac what is yours going in? Heavy motor.

 

There should be a line - right next to the distributor in the rear of the block.

 

I found it. Trouble is the modern fitting is too large for it. Same thread pattern.
Now comes the fun of trying to adapt for it