heads and cam
#2
lifters and rockers. check this place out and give lloyd a call.
http://www.elliottsportworks.com/lt1.html
http://www.elliottsportworks.com/lt1.html
#5
alot depends on what is done to the heads and what kind of cam but yes u can get 400. probly lookin at 3 to 4k before your done. the nice thing is u can do it in stages. like do the motor and headers, then the cat back. can also hold off on some of the motor additions till u can afford. like tb and injectors.
#8
whatever u want to do on the motor. if u have the heads off the headers will be much easier to get in. and ull want to do the intake at the same time so think about what u want to do before so u dont have to take the motor apart more than once. water pump, opti, plug wires, front cover seals, etc.