A 318 Poly can be a TREASURE man! I'm old, dumb, and full of bad ideas which I still oft act on, like marriage and procreation, but if you have a Poly, you might consider keeping it. They're VERY STURDY for ONE thing, and the polyspherical heads have CANTED ANGLE VALVES which, like the Famous "Boss" and "Cleveland" motors made by a normally too conservative Detroit company, can be made to BREATHE PLENTY through that engine. You'll need to run premium gas with it, but that short stroke can wind up quick!
The BIG objection to the Poly motors was and remains their weight, but that also can be part of their virtue. Research the Poly. My own FAR wiser Elders have shown you some hints of what can be done with a Poly. If I had an old pickup with a Poly, I'd be doubly happy.
Best of all, they will take a fair number of parts meant for the later, "Light A" block engines, thus making more interesting experiemnts possible with them.
Check it out. ALL these C body Mopars are becoming treasures. You SHOULD TREASURE ANY RUNNING setup.
If you're majoring in Mechanical Engineering, try making your Poly a Senior Project!
Best Wishes.