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As the title states, I cannot seem to find info on the routing for the hoses that go on these hard lines. I’ve seen a lot of pictures where people don’t have them so I’m assuming they can be deleted. I’m doing an EGR and TVIS delete as well as not routing coolant to the throttle body since California doesn’t get that cold. Any help with identifying these and their routing is very appreciated.
 

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These are the "no. 1 air tube" (the one over the distributor) and "no. 2 air tube" (bolted to IM runners). They include air/vacuum connections and water bypass connections. The large diameter tube pointing to the front of the engine on "no. 1 air tube" connects to the intake pipe just after the air flow meter. The smaller tee near the front of the large tube connects to the AC idle up valve on the rear firewall - so you need to find an alternative vacuum source if yuo are keeping AC.
 

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This shows the vacuum hose layout for the 91.
This is 93
 
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