I'm picking up my engine this weekend ! where should i start as far as wiring my rex to run the h23?? any diagrams or what??

 

It depends on how you want to do it, what computer, etc.. Assuming you have an HF or Si car. My personal suggestion would be to use a 92-95 distributor and computer and get an obd0 to obd1 jumper harness. BTW, what mount kit are you using?

 

odb0 to odb1 sounds like the right way i'm gonna need to go.. i'm gonna be using 92 h23 ecu from si prelude.. is everythin around the same as it would be if i went odb1 with anything else or am i looking at a whole nother thing?