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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | 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: Jan 2016 Posts: 631 'Bolter | | 'Bolter Joined: Jan 2016 Posts: 631 | Close up the gap just a little. "Dwell" indicates the number of degrees of distributor rotation the points "dwell together"- - - -points closed, to make it simple. A 6-lobe distributor cam has 60 degrees between high spots, and the points need to stay closed approximately 2/3 of the time, so 40 degrees would be the maximum points closed time. Early stovebolt distributors ran 37-38 or more, while later models dropped the dwell down to the low 30's for some reason.
Jerry Think the change was the cam profile changed as per DEVE HEI upgrade how to ID early from late distributors. http://devestechnet.com/Home/HEIgnition
Last edited by showkey; 07/22/2016 7:11 PM.
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