Zed, I think I can jump in to answer that question. I'm fairly certain it won't require larger injectors. Factory injectors will have unutilized flow capacity that can compensate for a higher volume of E85. Now that I think about it, I can also speculate as to which map you'd run while fueling a gas/E85 mix. It must be the E85 map since the higher flow rate would just run a rich A/F mix on part gas and the timing would also be retarded since E85 is higher octane. Both safer conditions than the opposite.