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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!
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| | | | Joined: Jan 1970 Posts: 365 Shop Shark | | Shop Shark Joined: Jan 1970 Posts: 365 | Here in Nebraska Corn Country, several stations are beginning to market E85 fuel, which is 85% ethanol and 15% gasoline.
I have been considering running this fuel in my yet-to-be finished 51 half ton. I have overhauled a 261 (bored .030) but did not mill the 848 head enought to raise the compression much.
Some of the ethanol websites I have checked suggested that engines with a 'hot spot' under the carb (like a stock stovebolt 6) do pretty well with this fuel as the 'hot spot' helps fully vaporize the alchohol.
Some newer cars are set up to run on this stuff and I was wondering if someone knew what changes the computer made to ignition advance and fuel delivery curves. In other words, what needs to happen to make an engine run right with this fuel.
Someone in the know willing to share??? | | |
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