[KyMustang]

Just found this site and I need some help. I hope that I am in the correct place to get answers if not could you please tell me how to get to the correct place.
I have a 1991 Mustang. My father and I rebuilt the motor and it is now a 306. We put AFR165 trick flow intake, 70mm throttle body, 75 mm mass air. After starting the car for the first time only after 2 or 3 minutes the temp gaug goes past 270 degree. But when I turned the heater on the temp goes back to normal. Any suggestions?

[KyMustang]

Does anyone have any suggestions about my heating problem?

[VP_96COBRA]

Hello welcome to this great site and great group of people. If you have any questions or concerns regarding anything just let me know i will gladly assist you. Also if you have time check out some of my photos in my gallery and tell me what ya think. thermostat could be stuck open or closed also check your lines and when was the last time you changed the fluid? and what is the level of it