I have a fuel smell when driving but not when the car sits in the garage or anywhere else.
I think it is the venting action to the canister and then it makes its way to atmosphere while driving, under the correct conditions.
Essentially I need to know if any of my vacuum hoses are attached to the correct nipples/spots on the 1990 style TB.
I have a check valve and all factory hardware installed on my C53a. Very, very similar to what you will be using, for a charcoal canister.
I think we posted about that a while back?
Looks like the same canister but different fittings and solenoids (or none) used to perform the venting in/out of the canister/motor.
When you have enough parts from multiple platforms and years, you tend to get a little tongue tie when people ask how your canister works. Haha.