Xe285hl cam

With all the calculations IMHO
only if you are at the top of your range you go to the bigger cam
anything below the top compression use the shorter cam and 1.6 rockers on the intakes only
unless the rpm range of the bigger cam is where you really want to be all the time- and it usually isn't
not enough dynamic compression with the 274HL change to a different grinder
also verify if the exhaust is right duration for your build and the lca if not there are other grinders with similar cams from 108 to 112 and Single Pattern (for a good flowing aftermarket head to maybe 12 or 20 degrees extra on the exhaust (for those stock head and manifold builds)