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Old 07-27-2022, 02:20 PM   #8
72SB
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Join Date: Apr 2022
Location: Moorpark, CA
Posts: 702
Re: 1968 GMC 250 Inline 6 4.1L Chugging

well manual choke should be open fully when pushed back in....so check choke linkage to confirm it does in fact open it fully. You don't need to drive it to do this

fuel pressure may be getting compromised. Maybe a kink in line somewhere??

an inline FP gauge comes in handy
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