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Do I need to plug these?

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Old Jul 2, 2020 | 02:12 PM
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Default Do I need to plug these?

When I deleted the ecm last summer, the hoses circled in the picture were left unplugged and tucked away.
The engine seems to be running fine. I have a very mild Comp cam. I called Comp and asked how much vacuum I should be getting at idle. I'm getting 17 inches and that's what the Comp tech said I should be getting.
The brakes work fine and the headlights are a tad slow, but not bad.
The hoses all appear to go to the charcoal cannister. The thought just crossed my mind (what little I have) that these unplugged hoses might be a vacuum leak??
Am I just overthinking, or should I plug them?


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Old Jul 2, 2020 | 03:23 PM
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Those all look like the control system for the evap canister, If you can put your finger over them while it's running and don't feel any vacuum or notice a change in the idle, tuck them away. Or make them go away. You might notice a fuel smell around the car, There is a line from the tank to the canister for vapor recovery.
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Old Jul 2, 2020 | 05:46 PM
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Why did you disconnect the EVAP system? It has ZERO effect on performance but a good purpose. That purpose is to allow a sealed fuel system (no vented gas cap) where the vapors accumulate in the charcoal of a canister and are then drawn into the intake manifold (via the PCV system) to be burned.
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Old Jul 2, 2020 | 06:11 PM
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Originally Posted by SwampeastMike
Why did you disconnect the EVAP system? It has ZERO effect on performance but a good purpose. That purpose is to allow a sealed fuel system (no vented gas cap) where the vapors accumulate in the charcoal of a canister and are then drawn into the intake manifold (via the PCV system) to be burned.
I don't have the air cleaner that one hose went to and another hose went to the top of the qjet carb (overflow?) that i don't have (edelbrock now) the other two hoses were on the thermo housing that I no longer have.
Where would I connect them currently?
Hose from tank to cannister is still connected. I don't have any residual gas odor
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Old Jul 3, 2020 | 07:30 AM
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Car runs fine without hoses connected? No gas smell? Plug 'em.
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Old Jul 4, 2020 | 02:24 AM
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Shouldn't those go to your FLUX CAPACITOR?
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