running hot

okay guys, so i let my cobra sit for about 4 days and i got in it today and while i was driving down the road i seen coolant coming out of my hood vent. so i pulled over quick turned it off and opened the hood. when i opened the hood i seen coolant everywhere around the radiator and reservoir...

So i have just recently got my 98 GT Mustang running with a built 2001 Cobra Motor with a P1-SC Procharger. I have put 500 miles on it and everything was looking ok . But one morning I noticed that it was running on the hi end of the normal gauge. I took some readings of it and it is only hot at...