I need to install new 19lb injectors on my 1993 Mustang GT because they are the stock injectors that came on the car and it has 99000 miles on it, gas milage isn't that good either. Anyway, I have priced Stock Motorcraft 19lb injectors and they are very expensive, I'm talking 67$ a piece! I saw some 19lb injectors in Summit made by Ford Racing that are 209$ for all eight. Has anyone put these Ford racing in their car and do you have to adjust anything? The caption under the Ford Racing injectors says "use with recalibrated high-flow MF sensors". I just want to know if I can install these things on my car like it is. It is completely bone stock. Please help.