mztrbo, why would you put in a set of injectors that had problems in a friends car? get them cleaned and tested etc.. if they are fine after that then put them in, from what ive heard many times again the "jet" at the base of the injector is different on the rotary injector due to the fact then when it sprays fuel into a rotary it has a shorter time to put in the right amount of fuel.. hence they squirt rather then atomise properly.