bon voila une nouvelle reponse
celle ci plus explicite mais pas non plus le must
Using the original feed, it a very good option, you will get more than enough air into the engine.
If you want to have it right at the front, you will need to route it around the raditor (not easy), or it will have to go across the manifold (not particalury good) to the other side which has free space.
You could try moving the radiator across, though it doesn't move much.
on sais deja que l'alimentation d'air d'origine est a priori tres bonne mais que pour l'avoir en facade faut soit deplacer le radiateur soit passer entre les tubes