Currently our indy has dellorto's with no filtration at all - as nice as it sounds and looks I think we need to put something on there.

What do people run on these - bearing in mind the minimal clearance to the chassis member on cylinder 1.

If it's passed sva/iva then some simple foam socks

I have an ITG megaflow on mine which im very happy with.
- The quiv piper filter doesnt have the hard corners however, which might suit your close chassis member better!