When I start a fresh engine I like to hook up an extra gauge for the water temp and oil pressure in the engine bay. The oil is easily done with a tee. The water temp gauge is a pain because of the long mechanical probe, so I coil it up as small as possible, put a couple of tie wraps and place it down on the intake. Then when the engine is broken-in, I drain some coolant and remove the gauge. So here's the question. Where can I find a gauge I can screw directly to the intake and leave it there as verification to the dash gauge? Anyone use one?