Definitely will have to upgrade the stock injectors to the 42# just to run on regular fuel because of the added airflow. The stock injectors will most likely go static pretty early and chances are we may need to go to 60# injectors to run E85. I most likely will be wrong in this statement but, we won't know till MPfab starts the testing phase.
Glad I already did my 42#'s... here's hoping that's enough for 93.