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Discussion Starter #1
I am in the process of putting my 67 GTO together after finally getting it back from the restoration place. My question is how do the wires from under the dash go through the firewall and into the engine compartment. I'm talking about the harness that goes to the fan blower, the main relay for the a/c the wires for the heater temperature. I can not find a place to put them through.

thank you in advance.
alan
 

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Discussion Starter #3
Thanks, I purchased this grommet new from Ame's and it only came with three holes in it for the three vacuum lines, no other holes were available. Does this mean that I need to cut out a notch to run the harness through?? Two of the vacuum lines run to the ac vacuum valve just to the left of the yellow circle and the third runs to a vacuum port on the intake manifold. No forth hole.
 

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Ames does not offer the correct grommet;

The OE will have 4 holes 2 small and 2 larger with a slice to feed the harness into it.
I'm unaware of anyone making the correct one. You may be able to modify that one?
 
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