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Click on image for the lowdown. 
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| | | Forums66 Topics128,122 Posts1,056,331 Members48,439 | | Most Online14,466
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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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Dec 2004 Posts: 1,897 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 1,897 | The Military 302 manifolds are available NOS from places like Memphis equipment. They do have ports drilled in the manifold for vacuum. they are the 3 bolt carb style.
I ran a otherwise stock 270 with a 390 cfm 4bbl. It woke that 270 up quite a bit. It would have really screamed with a cam and headers. The 4bbl intakes are available from Patrick, or Larrowe. They are highly reccomended. | | |
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