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Dawoo73180
03-26-2008, 11:26 AM
1991 XR-4 150. I just bought a set of Bob's Velocity Stacks. Just one Question what does everyone do with vacuum hose that originally connected to the air intake. It starts just behind the carb in front of the reed valves on the #5 cylinder, and runs to the Bottom of the original air intake.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

T-REX
03-26-2008, 05:31 PM
Juss plug it off....It's to prevent puddlin in tha airbox...no airbox, no puddl'in!!:D

Dawoo73180
03-26-2008, 09:05 PM
Thanks T-REX:)

Fish
03-26-2008, 09:07 PM
not an expert but I think you will need to rejet your carbs of you are going to velocity stacks. You might already know that but I thought i would mention it.