I am doing the exact same thing this winter. Have mine down to the block and waiting on parts, cleaning stuff in the meanwhile. I didnt touch the bottom end, but I have ported my blower, and added a block off plate, modded my LIM via BillBoost's thread, and ported my TB along with removing a bulk of the MAF dam. I was previously decided to not port the heads myself and just leave them stock flow, but if I find a decent guide and find the time I may pull out the dremel...

Also I have headers, MPS, polished aluminum valve covers, new stock timing set, XP cam, shift kit, etc on the way from ZZP!