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

That looks like a good fit! I assume this is mockup. You could easily set up a port a power with the engine out of the way and gently push that inner fender out a tad away from that header, I bet. It wouldn't take much at all.

Yes, just a mock up with a core motor. Good idea on the port-a-power.