Being a RX7 factory injector, I've read up a decent amount off other forums to know that they are reliable and have a vast range capability when it comes to gasoline. As of recently, stock TT turbos have began pushing the 740s fairly close to their limitations when equipped for E85. Just wondering if anyone has ran the border rail kit with Nippon Denso/Sard style 850s, or 850s fitted in the 300 degrees rails.