help please! tuning

[jpindy3]

hi there,i have a pinto turbo and i am installing a mj v3 and i have the 2.1 software.
i need to find out how to make maps for it,i understand most of it but have a cupple of questons,
right so far i have sorted a rev range witch is 900-6300,im stuck on the load bins,im starting with 12psi boost,i was told how to work it out i dont know if im doing i right?
ok
12 divide 10=1.2
then take the 1.2 and take it off 12
12-1.2=10.8
then
10.2-1.2=9.6
then
9.6-1.2=8.4
and so on down to 0,so then i convert these numbers to kpa,
now this is the bit in stuck on,the numbers that i have converted range from 8 to 82 and thats 10 numbers.
so is this my loads,if so why are thay so small,i thort boosted maps would have high loads.
i hope some one can help please

thanks jamie