suspension hotchkis cpp

I took my car to an highly recommended alignment shop here in Vegas. They tried 4 times. They were able to align my 64 chevy II (originally a 6cyl now a blown 383stroker with a never sprayed 175shot of nos making 596rwhp on motor alone) but after driving it for a block, it goes out of alignment...

hi im am new to this thread and i own a 1970 nova and i have been doing alot of research for my car and ive decided to go with the american racing ttII's with in front a 17x7(4 inch bs) 235/45-17 tire and in the back a 17x8(4.75inch bs) 255/45-17 tire. this shoud work fine right? i kinda want to...