I run 28 back and front and regarding fuel at a steady 3000-3250 rpm can manage 41mpg or a good 300 miles per tank, i usually fill up at 275 to be on the safe side.
Vspec, you need to fit the 280mm tank sender, much more accurate.
I have the longer sender, was just reflecting on how mad this car is in stock condition...
I think there is still decent amount left in the tank even when the new sender says 0%, but have never tested this theory...
Hopefully I'll manage 300 (km not miles) then, although I don't remember what rpm 130kmh is. I have a 5l jerry can with me just in case
