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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: Jun 2009 Posts: 1,596 'Bolter | | 'Bolter Joined: Jun 2009 Posts: 1,596 | I'm betting the cylinder pressures will be higher when the engine is loaded. More throttle=more fuel=more air=bigger explosion to make for the same amount of RPM. So, different pressures and different sound. | | |
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