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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!
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| | | | Joined: Sep 2020 Posts: 40 'Bolter | | 'Bolter Joined: Sep 2020 Posts: 40 | The pressure regulator works off of intake manifold vacuum. Most LS swaps switch to a returnless system and use a C5 Corvette fuel filter/regulator to mimize long fuel line runs, but the return style works just fine.
Pressure is something like 48-50 PSI at idle. | | |
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