Offenhauser Dual Port 360 - run it or scrap it?

I agree with above, you have it, you can try it for the cost of gaskets, and some wrench-turning. I would rather see it on a 318 with 2.76 gears, trying for gas mileage.
I suspect it might work okay on the bottom end, and off idle. I also suspect a RPM airgap will absolutely murder it, everywhere.