Air Gap / Autoguage Question

I am setting up my Air Gap on my 340, mounted my Autoguages guages and first thing I noticed was the AutoGuage water temp sensor is huge. It aint going to fit in the original sensor hole location, leaving me only one option, I purchased a Brass 3/8 tee and mounted the tee where the heater hose nipple is located, but it looks like if I tighten the sensor into the tee it is gona bottom out. Anyone else have a suggestion of how to get around this, the whole darn thing looks alien on the manifold now.