Breather tube location

[DeWitt]

I'm installing a 65 on a J3 that hasn't seen the air in many years. I need to install a crankcase breather tube and want to know where most tubes exit the cowl. I've got another cub to look at but someone drilled a hole in the bottom of the cowl, put a grommet in it and routed the tube like that. If this is normal I'll drill a hole but first I thought I check in with the group.
Thanks DeWitt

 

[bob turner]

 

[AOP]

 

[Captalbertq]

 

[bob turner]

 

[billb]

 

[43-29080]

 

[Fifinella]

 

[AOP]

 

[bob turner]