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Click on image for the lowdown. 
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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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| | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | a little bigger cam
What duration @ .050"?
You cut down the divider wall? How much? That reduces idle vacuum somewhat, which may require richer mixture (and so may the cam).
How many turns out gives the fastest idle? | | |
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