Air filter wanted

[DaddyA]

Hi all,

just had another session on the RR to sort out my fuelling.

All ok with air box (home made) off, stick it on and it runs like a bag of S**t.
Too restrictive is the concensus.

So as anyone got one of those foam domed air filter jobbies hanging around they might want to pass on?? Pipercross would be nice