Another Main jet qustion?

What does the # mean? Is it just a referance or is it the area of the opening? The math says I need a jet with an area of 135.654 is the the jet size? I use a K type po barrel valve. We have run the best with a 130 and a 20 high speed at 90 psi 50 % thru the hat and 50 in the ports.

 

that is the guaged hole in the pill..when you set up a fuel system you need to know your total hat area and your totaql nozzel aera ..Dave