I was putting in an autometer gauge, (I had the room, and the oem leaves alittle to be desired) but I can t seem to find a port anywhere to use. I m just about down to drill a hole and tap it. Not a real problem, but if there is a port Im missing I d rather use it.

 

Don't think there are any more than just the one where the stock sender goes.
Going by memory here so could be wrong- isn't there a unused port towards the pass side of the line to the heater on the tstat housing. Might not be an accurate location though.