Notched passenger side fenders?

It was sitting against the fender, which you can see in the first few pics. I could have done a lot less and gotten enough clearance, but I want to be able to pull the valve covers easily with the motor in place. I just marked the width of the valve cover bolt pad, marked the under side, and then tried to match the angle going up the fender.

This is a spool mount 73 duster, so I'm wondering if that has an affect. Most of the other cars doing the swap are biscuit mount, and most have adequate fender clearance. Not to mention, spacing a biscuit mount is easier than a spool. And I've already welded up headers with the motor sitting in th K