If you have upgraded your injectors please post your IFR rate with 44# Multec II injectors. I have read anything between 5.00-5.30. Of course I realize that the logs will have to be analyzed and tables adjusted accordingly. Its nice that this is vacuum referenced so the IFR table will have the same rate all the way across. My truck has a 5.3 with stock cam and heads with the whipple. Thinking of starting at 5.2 and adjust from there.

 

I think I have mine on 5.15. I've used numbers from 5.00 to 5.25 at different times, but usually settled back to 5.15. Just about anything in this range will be fine. Leave the offset values alone.

 

If I remember correctly, I have 5.12 in mine whick keep my ltrims hovering between 0 and -4 thru most all of the fuel cells. My truck is n/a with mild heads and a small cam so a slightly higher number may work better with the whipple.