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Posted: **Wed Dec 17, 2014 4:36 pm**

I plan on using a Weber 40 DCOE on a tuned 998. I have the specs outlined by David Vizard. Have the specs changed in recent years due to the change in fuels?
Thanks in advance for your input,
Tom

Posted: **Wed Dec 17, 2014 5:16 pm**

For a modified 998 Vizard suggests:
Choke 33MM
Main Jet 140
Air Corrector 180
Emulsion Tube F16
Pump Jet 40
Idle Jet 50F2
Aux. Venturi 45

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Tuning a Weber 40 for a 998

Tuning a Weber 40 for a 998

Re: Tuning a Weber 40 for a 998