Topic: Location of thermactor anti-backfire valve?

[67gt390fb]

I have an S code 1967 mustang .  I am trying to replace the missing thermactor emission system.  I have collected all of the necessary parts, but have found two different possible locations for the anti-backfire valve.  one mounts on a bracket attached to the back of the passenger side head, and the the other mounts on the intake manifold behind the carb.   Which one of these would be correct?

[J_Speegle]

It should be a two port valve mounted to a L shaped bracket  (sorry don't have a number right this minute) attached to the rear of the intake.

There are a couple of different configurations depending on when your car was built (like so many 67 details and running changes) so I hope you got all the right pieces for your specific car

[67gt390fb]

thanks Jeff.  If I do have two different intake mounting brackets, I will check back.  Otherwise I will use the one I have .  Alan

[J_Speegle]

Original application appears to have been C6OE-9B290-C

Here is a picture to assist