How so Alex?, like I said its been done before I don't see how it would be an issue
not so much to lower the fuel in the surge tank as its the surge tank that heats the fuel, but to cool the fuel that's going into the engine. When the fuel gets hot the performance of the engine drops... not such a big deal on the street but I know that Unigroup have invested in a fuel cooler in their RX7 race car due to the back to back results of hotter and cooler fuel