So I've got a 302 in a 67 coupe. The intake I currently have has two holes in the coolant passages, one where the heater restrictor goes and the other towards the drivers side of the engine. This is generally where the sending units are located right? Well this particular hole is too small for the sending unit's threads. Right now I have the sending unit located right before the thermostat. Does it matter really what side of the thermostat I have it on? Where else could I put it?