8-71 blower

Hey guys,

We are running a 468 bbc with a 6-71 blower.... nothing special just an ordinary one.

We have an 8-71 front discharge bds on the shelf..... Its a 60* standard helix and standard 14-71 opening on it.....

Now the question, how do I figure how much more fuel to add if all I do is set this one on and go..... meaning Do I need to open all the nozzles up both top and bottom and fatten the whole system up at the main? Do i just fatten the main?.....?????

The current nozzle area both top and bottom combined is......20061.5 with 60.182% to the motor and 53.953% after the high speed. est. system pressure is around 120lbs. enderle 110 flows 13.9 at 4K

Thanks for any and all the help and ideas guys!