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- With ISO. Main and 2nd Jets 75 2f. thread.
- Users: mattressking
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ISO. Main and 2nd Jets 75 2f.
Clean the plugs or get new ones, drive and idle it then inspect plug color, that’ll quickly tell you if jet is too big/small. 159 may be good, but also dependent how strong your vacuum is. The closer to 21-22inHg (at sea level, adjust for your elevation), the leaner the jetting would need to be...- Word Count: 64
- mattressking
- Post #10
- Forum: 40- / 55-Series Tech
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ISO. Main and 2nd Jets 75 2f.
Start with 144 primary and 230 secondary for a '75 dated carb.- Word Count: 12
- mattressking
- Post #8
- Forum: 40- / 55-Series Tech