I have followed your car for a while mainly because I have a 73 camaro in the works, but I really think you should slow down on the up grades because its getting hard to catch up.
ps: if you ever get tired of your rear suspension I'll take from you for free.
i to have the gale banks twin turbos on my 383 and enjoy the torque it makes i went to the dfi set up this winter and almost have it tuned i also changed my cam so now the boost is comming on at about 1500 rpm under load. good luck on your project.