Im buying a used br 35r, and i need to buy a 4an oil feed line bolt that goes to the head, and stan from fast turbo was telling me to use a 3an instead of a 4an but the turbokit im getting already has an 4an. thanks

 

Ball bearing or journal bearing?
-4an unrestricted for the journal
if its ball bearing make sure and use a restrictor.

 

I'm pretty it is bb since it's a br kit so the -4an would be fine

 

With an oil restrictor, youll be fine

 

-4

 

sweet thanks guys