hi i got an 87 gta which once was a 350 tpi car it now is a 406 with a carb my question is when it was tpi one heater hose went to the radiator and the other to the water pump ok i did the same setup on my carb motor but have no heat i sincet then ran the heater hoses to the water pump and one to the intake i now have heat but looks messy under the hood why cant i get heat with using the tpi setup with the way those heater hoses were run any advise thanx

 

verify that the vacuum line from the heater control switch is attached to the heater control valve. also make sure the valve is opening and closing. hope this helps