As many of you should remember a few days ago my ailing Solex 4A1 on my 280S was rebuilt, after that the car runs like a kitten, idle is awesome, no hesitation, Car start at the first touch of the key, but guess what only 85 Miles per tank of city driving. I filled the tank on monday and i had to refill today in the morning to get to work. I dont know what is happening.

What can be?

Brakes are fine, clutch is fine, my car is an euro model, so it read km, 139.4 km / 22 US Gallons/1.64 (Km/US Gal.)

Regards,
Gerardo Paredes