Fuel Vapor/ Venting

What are you guys using for a tank/filler venting? Back into the i take with a filter/valve? Charcoal canister?
I am asking for an LS swapped Lotus Esprit - but nothing stock is left for either the car or the donor.

Terry Oxandale

Skinny Man
I run a 1/4" fitting and vacuum tube from the top of the filler, to drain under the engine bay (for inadvertent spills at the filler), and use a roll-over valve/vent at the top of each tank, with a hose turned down to drain (again) under the engine bay. Nothing fancy, and have only seen the vent tube in use one time when I overfilled the tank (transferring fuel from tank to tank).