I would definately recommend forged pistons for any forced induction application, also extensive cylinder head work would be required along with bigger valves, lump porting. Roller rockers are always a good upgrade. The stock cast crank is fine for this build, but I would try to find one that has NF cast into to it. The early forged crank is ok as well, but it isnt fully counterweighted if that matters to you, and if you can find one. You might also consider upgrading the connecting rods to something other than the stock ones.
What turbo are you planning to use?
