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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#77298 05/08/2007 3:21 AM | Joined: Jan 2007 Posts: 44 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2007 Posts: 44 | Greetings, O' Guru's!
I have a 1 bbl intake that I'm installing with Headers. It's casting # 3998149.
Do I need to plate the bottom of the intake? I'm wondering if there was an EGR bleed orifice on these manifolds...?
CJ | | |
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