My 95 K1500 w/ 144K miles dies when sometimes coming to a stop, which I am able to restart most of the time (occasionally have to crank more than once) & then also when at 65-70mph, dash warning lights come on, tach zero...then engine resumes running. Doesn't do it every outing, but more times than not. Seems to be at temp 195F or higher when this occurs. Have replaced plugs, wires, rotor, cap, fuel filter, leaking intake gasket, bypass hoses & ftgs. Any ideas