318 overheating

Ok sorry for the late responses but I got a little looking at Sunday. So I got a new radiator cap and let it idle for 30 mins. Stayed in the middle temp and my fuel gage started working. Once up to temp and the thermostat opened, saw the upper rad hose leaking due to the clamp needed to be tightened. ( the radiator and hose I put on last year new). So with a temp gun and reading 201 at top and 180 on the bottom the gage started to climb just a tad. Turned off the vehicle and put 2 test lamps on the feeds to my temp gage and my fuel gage. So my fuel gage stopped working again when I turned it back on and my temp gage started to rise and the test lamp for that was on a lot more. I ordered a voltage limiter and am gonna pull the dash this weekend and clean up the board and whatever else I may find.