had to put intake gaskets on it and now no heat it was working find atill I work on it does anyone have any though on this thanks for the time

Make sure you've got the cooling system filled up all the way. There might be a bubble in the heater core or something.

 

If the vent selector (def./floor/vent) is not switching, make sure you didn't leave its vacuum line unplugged. It goes from the intake manifold to a clear plastic container right behind the passenger side strut tower.

Hey thanks for input but I think it was the bubble it took and work today . so maybe that was what was going on have see if it last thank again.