Fuel tank vacuum lines
For busy work I am going to start replacing all my vacuum lines. I have noticed three or four lines at the back below the fuel filler tube that are plugged with bolts. I also see one going to the back from the charcoal canister in the front. I assume this is all part of a smog set up and am wondering if I should just remove all those existing lines or return it to stock condition. What have you guys done with these vacuum lines?
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'72 K5 CST 350/350 Daily Driver
'69 GMC3500 Camper Special CST Flatbed 396/400 Upgraded to show truck
'69 GMC 2500 L6292, 3spd beater
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