I was kicking around on the Radium Auto page again and thought that the following fuel pump tech info might be of interest to some http://radiumauto.com/media/techarticle-page.php?Radium-s-Ultimate-Fuel-Pump-Test-87 and for those who dont quite understand, here's the link to how a surge tank works. http://radiumauto.com/media/techarticle-page.php?How-does-a-Radium-Fuel-Surge-Tank-work-79