Disappointed in my 383 on the Dyno

So i found a 440 bare block in good shape that I am planning on picking up and building over the course of the winter. Being that I already have the 383, other than an extension for the MSD distributor what else will need to be changed? In theory, its taller so it should actually clear the steering box more due to the added height of the block? my headers are TTI so my assumption is they will still work but I am not 100 percent sure. Any suggestions on a stroker kit? anyone have one they are trying to move lol?