Very new and equally confused

[Early99]

The title explains it well. From what I have gathered, the hydra chip tunes are the number one pic for the 7.3powerstroke. If I understand correctly gopowerhungry makes the chip, and several places makes tunes that can be uploaded onto the chip?What I haven’t figured out, the tunes? I have a nearly stock early 99, with a 6speed. I do have a chip in the truck, that was put in about 20yrs ago. I believe it is a 40hp. If I remember correctly nothing bigger than the 40hp chip was recommended until a larger exhaust was installed. Sorry, that I am so long winded. Any advise or recommendations will
Be greatly appreciated.