340 stock manifold where can I put temp sensor?

Installing Sniper EFI on my 68 barracuda with 340 and Stock 340 manifold. The temp. sensor hole up by the heater hose and thermostat, is very very small. the temp sensor for the sniper is a lot bigger. The manifold has a hole that is plugged that is behind the carb and in front of the distributor which is the perfect fit. Does the hole have water running through it? would this work? It's manifold 2531915-2 Thanks