Have you had the Valiant to the track yet? That remote breather setup is the last iteration on a long running breather project. Tim tried a number of different breather setups and they all had issues of some sort.

I think the remote setup in the picture should solve the problems but it was fairly expensive. Also, there is no PCV on the motor. Shouldn't be a problem for a track car but a street car can get a little sludgy if it is driven around town without PCV.