i have 24# inj and run a C&L 73mm maf sensor.. the color coding looks like its been removed.. now the guy i bought the car from that had alll this stuff on it didnt know to much about what he was doing.. so i took it all off and stuck most of it on my car correctly.. at one point on the previous 5.0, he had 30# injectors.. i dont know if he ever changed the sample tube.. could it maybe be i have either a 19 or a 30 # sample tube thats causing my problem? when ya get on it, the car has plenty of fuel flowing in thanks to my FPR.. otherwise at idle it doesnt when you try and blop the throttle..