quick fuel vac secondary bog
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Junior Member
Joined: May 2004
Posts: 79
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From: london ontario
Car: 87 iroc
Engine: mild 350
Transmission: 350 turbo
quick fuel vac secondary bog
i got a quick fuel vacum secondary 650, it stumbles right around 4000 rpm! i got a 3800 converter, a 67 primary jet and a 78 secondary jet, fuel pressure is 6 psi at wot, i shut it downright after a fullthorttle blast checked the plugs, and they are lean! anyone got any ideas as to why i have this sag right around 4000? or how to overcome this? and i got the purple spring in
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