nbarbop24 Posted May 19, 2019 Share Posted May 19, 2019 (edited) So I bought my 240z with an L28 and Weber carbs in Colorado. I live in Ohio so that's a 5000 foot difference in elevation from there to here. When I got the car shipped here it didn't run but it did in Colorado, so I gave it more fuel and it ran. I got the car tuned correctly but it still runs rich, so I believe i need to get some new jets. This is what I have in it: Idle jet: F8 55 Air corrector: 170 Emulsion tube: F11 Main jet: 125 Aux venturi: 45 Main venturi: 30 Not too sure what I need to adjust to lean out the mixture but still allow it to run. Also if anyone could give me some advice as to how to pull out a stuck main and aux venturi out that would be great. Thank you! Edited May 20, 2019 by nbarbop24 Quote Link to comment Share on other sites More sharing options...
zredbaron Posted July 11, 2019 Share Posted July 11, 2019 The above thread has a wealth of good information (and misinformation). That said, if you read the whole thing, you will likely feel very confident in what direction you need to go. Quote Link to comment Share on other sites More sharing options...
zredbaron Posted July 11, 2019 Share Posted July 11, 2019 (edited) Shooting from the hip (experienced but one should always confirm the Weber charts), I think your venturis are too small, and this will give you a ton more air (and power capability). You will likely run best with a 34mm for drivability unless you have a lot of money in your head and it flows really well (36mm if so). Edited July 11, 2019 by zredbaron Quote Link to comment Share on other sites More sharing options...
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