VN style head,s cam to suit (different valve arrangements ) headers to suit..
Injection manifold complete with injectors harness etc..you may have to use eather a VN onwards fuel tank,which has return lines and internal high pressure fuel pump..or a external VL fuel pump will do ,unsure of pressure rates..And wiring harness to suit...
My personaly opinion is too much of a hassle..( why i using carby on mine..) each to there own tho..