awesome build, awesome engine!
my dad and i are putting one of these engines in a 66 nova, (look for overdos build thread). they take a little bit more planning to plum and fit everything nicely, but the engines are awesome.
not sure what your plans are for a heat exchanger, but edelbrock has some nice ones they sell seperately from their supercharger kits, and afco has nice ones they sell for cobra mustangs and lightening pickups, snow performance also makes some. thats one hurdle for you that i hope i could lend a tip on, hopefully with the bigger chevelle it isnt as much of a challenge to fit it all.
ill be watching this one very close, 66 is my favorite year chevelle, and this is an awesome combo going into one!