Hi Georgetoad ,
The 72 +8 has all the original emissions spaghetti and SU carbs . I am not sure if the tube or hose is where it should be . Do you have a picture of the correct hose and correct position ? I don’t think there is a hose ....
For expansion tank , do you mean the plastic overflow bottle at the firewall or the tank on top of the radiator where we add coolant ?
The fuse closest to the firewall blows . It is a 35 amp .

Thanks ,
Marlene H

Marlene