Holla! kazaa in a D9, thats a date to remember
About the range, as moot mentioned reducing RPM and boost to cruise settings is vital for a decent endurance. As i like any bit of speed i never take a DT, so i make good use of reduced RPM and boost.
But what i am most interested in is how the conversion felt to you. Whenever i try a spit i am amazed by the hispanos, but i have big problems with the flight characteristics and never really got used to it. Went so far, that even in low alt field defenses i rather take a D9 with 75% or less fuel than a spit16.