I'm not sure I would recommend shortening the fuel line. When your buggy flips(I said "when" not "if") you will have more fuel in the lines to keep it running longer while the pickup tube in the tank is out of the fuel in the inverted tank. That will give you more time to get to it or make it less likely to die while waiting for the turn marshall to get to it. But of course excessive heat does not help your fuel line or fuel....

Have fun and good luck!!!