Wow...Definitely Mustard....and send me the blue one 

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got her running and staying cool today (without a thermostat and fresh coolant flush) the fuse that says heater also controls the gas and temp guage, it was bad, put a new one in and everything worked fine until it popped the fuse again. looked underther and one side of the fuse was really HOT, the little prongs it popps in on one side are kinda commong out of the fuse box? maybe i should get a new box. but that is the issue.
Man that sucks. These problems are kinda hard to work on. disconnect the heater and see what happens. You can remove the plate that lets you have access to the fuel sending unit located near the rear heater and clean the contacts. I doubt the problem would be here but I would clean it anyway since it's new to you and that way you know it's making good contact to the sending unit. Also you may check the rear heater motor. The tend hold dirt and moisture over the years and slowly stop working all together. You can also disconnect the battery and clean the contacts on the fuse box. There is also a ground tereminal there that may need some cleaning make sure it's making good contact. Another notorious problem and has nothing to do with this problem you are having now is the rear the tail lights assy. tend to rust over time and will stop working.