Tried posting in the FI section but didnt get much response. I hope this works.....

So I have a NOS brand dry kit. Right now I have a jet in the nozzle which is a .047 and a jet on the 'T' where I'm supposed to tap into my FPR line? I was told that these jets are 100 shot. I wanted to know how exactly these jets add up. They dont make sense to me at all. I was told to get a 75 shot, I need a .022 and .022 jets. I'm totally lost on this.... tried doing some research but just got even more confused.