Fill up the radiator via the hose by the thermo housing. Then fill reservoir. Run the car with the heater on full blast and let it run for 20 min. Drive it around a bit to open the thermostat and if it appears to overheat run the heater on. After cool the car down open and fill up the reservoir. If u wanna burp it you could loosen the temp sensor while runnin to bleed the air out of the system. Many ways to do it
1996 Mustang GT, 17x9 front and 17x10.5 cobra r replica rims, 255/40/17 front 285/40/17 rear at the moment,
o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.