did a carb swap on my mustang and now the fuel gauge stays passed the full mark alll the time and will not work nor does the windows let dow anyone had this problem

 

have you checked the fuses?

 

yea i did and they all were were fine add all were geting juice except the one for the windows so i jumped it and got them to work but i dont understang the fuel gauge not working right was i supposed to put a oldler mustang sending leven unit in the tank from a carb one or what