Finally get to pretend I am one of the cool kids - Holley kit swap

My guess is I would have to grind 1/8" off the edge. I will get a picture later.
Well there ya go.. just D shape it a little.

Side note: Locktite and torque the motor mount to the block. Both of mine were had loosened up over the summer. I didn't locktite them or check actual torque when installing. just gave a good ol 1-2. First motor mounts I've ever seen get loose. To my amazement, the header bolt were all still tight af. Also, clean that oil pan! Mine was filthy right out of the box with fine material.