Extra ports for gauge sensors??

[DarkwingFury]

Hi i have 383 v8 4bbl I was going to put an aftermarket triple guage under dash but i cant see where to place the temp sensor. Its too large to fit where original goes. And the only extra port for water is being taken up by the temp sensor leading to the electric fan. Theres only two ports i can see on the right side under carb linkage but thise seem to be oil not water? Any suggestions? Am i missing something obvious?

 

[jake]

I drilled and tap the original port. I believe it is 1/8 and I tapped it to 3/8ths.

 

[73Coupe]

You could also install a nipple in the original port then a bushing or adapter to increase size. Or, install a tee in the other port.