that's the easiest place to put a surge tank,but it's not legal. even with a cover on it. might be different in SA,but I don't know anyone who'd approve a fuel system inside the cabin here in Sydney.
a std tank will surge with just under a quarter of a tank left in it.
as for the capacity thing,it really depends on how hard you're pushing,and for how long. if you can get by with a 600ml tank,that's great. I wouldn't use one that small.
Justin...
