Help moving gas tank to floor

#1
I'd like to move my stock Predator 212 gas tank from the top of my engine to the floor board, to lower center of gravity and improve weight distribution.

Would I be able to do this simply by running longer fuel lines? Or do I need to get a throttle plate and fuel pump? I estimate the new tank location to be about 30 inches away and lower than the carburetor.

Thanks
 
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