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Click on image for the lowdown. 
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| | | Forums66 Topics128,020 Posts1,055,345 Members48,419 | | 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!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2015 Posts: 9 New Guy | | New Guy Joined: Dec 2015 Posts: 9 | Hello! I am working on my '64 c10 with a 250 and am trying to identify an idle issue. However, I noticed two oval openings on my Rochester B and don't know what they are for. I have included a photo/link to photo to show one of them. Most carbs that I have found don't have these. Should these be open? Thanks! Jeff Edit for direct link: Picture | | | | | Joined: Apr 2012 Posts: 135 Shop Shark | | Shop Shark Joined: Apr 2012 Posts: 135 | Your link is not working as it should. I think you may have to make a few more posts in order to have a link work. Not positive about this, someone will chime in soon.
| | | | | Joined: Mar 2012 Posts: 240 'Bolter | | 'Bolter Joined: Mar 2012 Posts: 240 | Welcome to the 'Bolt, BackPayne. I think you need some more posts before you can post a link. Until then: ...Link... Personally, I don't know what the function of that hole is, but someone will.  Best regards, Bill
1947 3100 Advanced Design
Never, never, never, never give up. - Churchill
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | A photobucket hot link won't work no matter how many posts you have. Use the 'direct' link. | | | | | Joined: Dec 2015 Posts: 9 New Guy | | New Guy Joined: Dec 2015 Posts: 9 | Ok, let's try this. Picture of the hole | | |
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