haven't heard of the issue with the intakes cracking, what is the reason behind that????
Pretty much what everyone said is right on, also remember to retard your timing 2 degrees for every 50HP you add (keeps you safe). you might think about getting an MSD box with a timing adjuster module so you can adjust from the drivers seat, I think the 6AL would be fine for you.

don't forget these:
adjustable fuel pressure regulator
bottle warmer
remote bottle opener (not needed, but nice to have)

Welcome!