1mean96ss

Just got my cam installed and pretty much tuned except for some little things other than that it runs great until the temp gets around 180 ish, after that it just dies. there is no sputtering or mis-firing, it just dies. Next when you go to restart it, it cranks slower and slower everytime you try it. All the wiring is good that i know of as far as grounds and power. not leaking any fluids also. What could cause the car to fire right up but after 5-10 min of runs time just shut off