where does this tube belong?

[gt-83]

Still trying to get my coupe running right........ive just found this going nowhere,

 

[BlackC55]

I see no pic!

 

[grober]

Almost certainly should go to the inlet manifold beyond the throttle plate where the vacuum is highest. It looks as if it leads to the one way filter/valve mounted on the inner wing from which a clear vacuum line runs down to the EZL ignition unit mounted on the wing. The EZL needs a vacuum signal to modify the ignition advance curve. You need to look for a blank spigot or a disconnected rubber connector possibly on the underside.

 

[gt-83]

Thanks Graeme, ........could that tube be the culprit with a surging problem?

 

[grober]

could be
This help? its for a 12valve but manifold the same basically.

 

[gt-83]

Got it, underneath the air flow meter......didnt stop the surging though