Now that I have my truck on the road I can have fun with it and DRIVE!...BUT, I have some issues that I'm working out. What would be wrong with putting a pressurized radiator cap on my original 216? I have a BRAND NEW 3 row core on my radiator and a 160 degree thermostat. I have a non pressure radiator cap and it always boils over when I shut off the motor. Other than that, it runs real nice. :confused: