Technical 49-51 Mercury inner fenders shape ??

Is there a reason for the abrupt shape to the fender wells?
I know the duct for fresh air is there, but even on nice customs like the photo, they aren't finished off or extended to the firewall. Why is that?

 

so, apparently, no reason?

 

I guess to fit the flaps to shut off fresh air.
I’ve seen em extended.
I’m leaving mine alone.



for now

 

Hadn't thought of extending them. But now that you mention it...

 

Well, I'd have to look at mine, but with hood down, where are the hinges? Could be clearance issue?