Making power out of the 318

If not open to running the required gear and stall, I'll build around the gear and stall compromise you set.
Main problem when building smaller displacement is they gonna need generally more gear stall rpm etc. for example a 318 will need about 13% more gear, stall, peak rpm etc.. Than a similar hp 360 to get similar performance (13% based on similar efficiency lbs-ft). Obviously efficiency can vary.