318 la head vs magnum head swap help

Im swapping an la 318 with 1.88 J heads that haven't been milled so it is around 7.7 to one compression to a Magnum 5.2, the la has that crane cam in it and its garbage performance wise. I had my magnum cam reground almost exactly to the first specs you listed (112 lsa vs 114, 224 vs 227 duration at .050, and 496 lift with stock magnum 1.6 rockers). Hoping for a noticeable difference from my last cam in my low comp 318.