Jetting for large air filter

buckshot

Member
Got a predator in a buy out that is stock internals and head. Has had stock airbox replaced with std filter adapter/filter setup. With the added air intake,what jet should be in the carb?
 
they are pretty fat to start... it run it as is and go from there. I would imagine somewhere around a 38 jet tho?
 
Got a predator in a buy out that is stock internals and head. Has had stock airbox replaced with std filter adapter/filter setup. With the added air intake,what jet should be in the carb?
What size jet is in there now, low-speed and high-speed? Has it been run with that air filter on it?
 
Stock is around 31 on the high and 19 or so low side . If you are planning on racing it , you need to know the rules for the track or tracks your planning on racing at .
 
If you have a header, try a .035 assuming you have a cam and springs to get you to 6000 rpm or more.
 
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