Calling all 318 guys....318 vs 5.2 magnum, info needed please

It goes pretty well but it’s not geared right, it has an 8.25 with 2.71s which is a little tough on the clutch from a standstill. Incredible fuel mileage, I took it on a 13 hour road trip and it averaged 25 MPG. I have a set of 3.55s out of a 90s Dakota to put into it when I find a sure-grip. I am leaning towards a 5.9 but that balanced flywheel is out of the budget right now.