There is a few problems I see with that option.. 1. the intakes are way too small to properly feed a 14mil 72bore. 2. The cost of a 14mil crank is nearly $1,000.00 more then a 10mil crank. 3. The cost to trench for a 14mil is WAY more then to trench for a 10, especially if you want it done right.
10mil cub... enough said.