Wire out of harness to temp sending unit

[mgore68]

Thank's Vette. I am gonna look for it this evening when it warms up a little. I have only had this truck a couple weeks and there is a sending unit in the intake but no wire to it. This truck has a 454 and there is a place in the heads for a sending unit between the header exhaust near a spark plug I believe but it has just a cast square head plug threaded in it. I am nervous about driving it much without a way to watch the temp even though it seems to be running fine it could go south in a hurry.