302 head exhaust port bulge and a '65 Valiant LH manifold

I don't know exactly how thick the manifold is at the point of contact. Maybe taking a little off of each could work?
I do like Professor Fate's idea if I had no other manifolds here to use.
I have a rear dump 318-360 manifold that will work but requires that Borgeson coupler. I was trying to save this guy the $175 though.
...and now you're gettin yerself into where you didn't wanna be. You're tryin to help too much. I'm kinda doin similar stuff. When I get done with every little project I have here, I'm gonna be done for a long time I think. Maybe for good cept on my stuff. My health is really startin to turn. It sucks.