all small block mopar part interchange......... 68 manifolds have smaller ports. 76 has emission ports in them.you need 75-78 manifolds
it should be on the intake manifold, look on the right side of the intake in the gooseneck area. right side facing the engine.
18436572
18436572 it's the same as a Chevrolet
Don't know off hand, but it should be molded into the intake manifold. 1-8-4-3-6-5-7-2
There will be a hole in the valley pan under the intake manifold. This takes a rubber grommet that the PCV goes into. Then the hose runs to either the large port on the carb, or there should also be a port in the intake runner that it can hook to.
If it is backfiring the timing is set incorrectly or the spark plug wires are not connected in the correct order.
Dodge
1968 Dodge Charger
The Dodge Charger had a new design in 1968. This 1968 Dodge Charger included hidden headlight grille, refined tail, less chrome and recessed backlight.
Start with removing the intake manifold. If it still not found you will have to drop the oil pan. If it made it's way to the bottom of the oil pan it would be harmless, but you will not know.
wiring diagramfor 1968 windshield wiper motor
Fantic Motor was created in 1968.