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Old 05-20-2019, 11:10 AM   #8
demian5
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Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
Re: 1986 C20 350/400 wont go past 2500 RPM in Drive

Figured it out. The check valve in the factory fuel filter in the Q-Jet was sticking. Went ahead and bought a new filter and pulled that valve out. Glad it was something simple.
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