LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Dumb Question...What is this???

Old Apr 27, 2011 | 05:54 PM
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Default Dumb Question...What is this???

What is this hose? Firesuit on!
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Old Apr 27, 2011 | 06:00 PM
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Opti vacuum hose

You can google shbox opti oil hose for more info
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Old Apr 27, 2011 | 06:01 PM
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It's the vent for your optispark
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Old Apr 27, 2011 | 10:00 PM
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Sidenote: If you are running boost, put a 1 way valve in that line.
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Old Apr 27, 2011 | 11:48 PM
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It's a feneuter valve....jk, Its the fresh air side for the vented opti. The other side comes from the opti and goes up to the intake manifold on the drivers side
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Old Apr 28, 2011 | 08:47 AM
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Thanks guys. Pulling any and all unnecessary pieces while I am replacing a head gasket and just wasn't positive on that.
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Old Apr 28, 2011 | 08:51 AM
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you need to keep that one, you'll see it connected to the opti once you take off the air filter.. btw - you're running 119mph with the stock exhaust manifolds?
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Old Apr 28, 2011 | 08:55 AM
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Ya, gonna re route it and try to hide it under neath somewhere.

Negative on stock manifolds. Pacesetter LTs through a 2.5" X-Pipe w/ Bullets.
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