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ls3 intake Vacuum port question

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Old 07-03-2012, 08:04 PM
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Default ls3 intake Vacuum port question

Im putting a lq4 with ls3 heads and ls3 intake in a 2000 camaro ss I'm wondering where do i hook up the HVAC vacuum line now since there isnt one on the ls3 intake. it kinda looks like theres a spot for it on the back of it but has like a casting over it?
Old 07-04-2012, 03:05 AM
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have you considered a vacuum block... possibly a "T" or "Y" fitting btw the brake booster and manifold...
Old 07-05-2012, 09:59 AM
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Originally Posted by Kooljames20
Im putting a lq4 with ls3 heads and ls3 intake in a 2000 camaro ss I'm wondering where do i hook up the HVAC vacuum line now since there isnt one on the ls3 intake. it kinda looks like theres a spot for it on the back of it but has like a casting over it?
You can open up the one on the back with a drill and then hook your vacuum line over it.



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