another 383 build up Q

I have read some of the threads in here on the subject of 383 performance. some good advice. to start i aquired a 73 duster for $500 and found a 383 with 906 heads for $100. the block is in dire need of blasting and possibly need boring and sleaving. not sure yet if the block and heads are even usable. but assuming they are......i would like to squeeze 600hp out of this 38yr old chunk of iron!

I have a year One catalog and have been looking at the parts in it and a few other places just to get an idea of what is available. And yes i am willing to put the 10k+ into the engine.

planning on a 727 tranny unless someone convinces me otherwise. also chassis supports etc....

i have to build the engine basically form scratch so i am not limited by stock parts. what would be a realistic hp gain NA (naturally aspirated and FI (forced induction) and what would be the best route to acheive them (including parts list)? and don't forget electical, cooling etc...

FYI: was originally a slant 6 but have a K for big blocks. car is basically a shell. planning to drive on the street.