I recently purchased a 1973 Euro 911 and discovered a gas smell in the interior. I have and replaced the clear vent hoses as well as removed and checked the "black box" behind the dash for leaks-none- (as it is a Euro model the box is empty and has no charcoal in it. I seem to be getting the odor more on acceleration even when the tank is less than 1/4 filled. The car has MFI and I have had the pump rebuilt and replaced the injectors. The CO is dead on at 4% and the car runs strong. Does anyone on this board have experience with this problem or any suggestion as to where to look next for the source of the odor? My wife will not ride in the car until it is fixed.

Todd