05-18-2009, 08:31 PM
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| Junior Member
Join Date: Jan 2008 Location: SE Mo
Posts: 28
Car: Toyota FJ 40 Engine: 350 Chevy Transmission: SM420 Axle/Gears: 3.70 | Vac Sec Adjustment Help | Hi Guys, I don't have a 3rd Gen, BUT I do have a SBC in my 4WD ( Toyota ). I lurk here for the Chevy info. I put some spring loaded needle and seats in my 1850 Holley this wkend, and was trying to remember the info in the Holley Tuning sticky. I " think " I messed up with the adjustment on the secondary adj screw, trying to get it open a little, while trying to keep the primary transition slot like a little square box in shape. It idles at a high rpm, even with the adj screws on the primary side screwed in . How do I get back to a close to stock setting on the Vac Sec screw? Motor is a 350, Edelbrock EPS man, 600 Holley, CCx cam ( 210/218, .447/.462, 111LC ). Any help appreciated. Al | | | |
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