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Old 05-04-2010, 08:11 PM   #41
JAMMINKRAZY
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Quote:
Originally Posted by PsycoB4 View Post
Now if you change the Venturi, do you have to Re-tune the Engine? Since you are drawing more or less air?
Yes you will have to re-tune. That is in fact the purpose of a venturi. Running a smaller venturi will require a leaner setting, thus it will give you better runtime. The smaller the venturi the better the runtime, but the lesser the top end of the engine(bottom end is not affected much). If you find you can sacrifice a bit of top speed, running a smaller venturi will get you more mileage.
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