Ok, here is the deal. I use to have the C&L 76mm installed calibrated with my 24lb inj. I swapped the 24's back to 19 and put stock MAF on. Right now I am running a 70mm TB with my stock MAF. Is that bad? I dont want to put out the money for a calibrated 19lb C&L b/c of my future plans. I heard something about a sample tube or something, is there anyway i can get a 19lb sample tube for my 24lb C&L?