Porting Throttle Bodies

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     I have been providing performance options for Harley Davidson motorcycles for more than 36 years.  My extensive experience in drag racing, street mods, dyno tuning, cylinder head porting & building big inch motors has provided me with the know-how to customize your Harley engine mods in all RPM ranges according to the way you like to ride.

     I am also a S&S authorized dealer and Certified Technician with years of experience building S&S motors of all sizes. 

     All you need to do is tell me what you'd like to get out of your ride & I will do the rest.


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Welcome to Dan Vance Racing !

This is our new website & still under construction.

Please feel free to ask Dan what he can do for you.