Injector Sizes

Well I got a new motor and they company I got it from sent me some pink ones and they told me they were off a 04 N/A Saleen and that they were 24lb. I need to know because I got a 85mm mass air sensor and the chip needs to be burnt for it. We tried it with 19lbs and it was running to rich and then we went to 21 and it leaned it out a little then we tried 32 because some guy said he thought that the vortecs came with 32 and were pink but that leaned it out too much. I'm starting to think that they are 24lbs I just don't know why they're pink.