Further to my earlier posting (petrol disappears)
Oops, yes of course I got my maths wrong ! Obvious when I look at it now.TY for all replies, sarcastic and otherwise! Think I will try Richard's idea of an electric pump, but wondered about its location - IE should it be the carb side of the existing mechanical pump, or the tank side? Or...how about in-tandem as it were, using a "Y" connector at both ends of the pump inlet/outlets, this way surely the mechanical pump would not be affected at all by the leccy one?? TY again...Tim.