I have been running a 265cc Bosch EFI 6th injector good for ~48 HP on the KUQEFH. I will soon upgrade to a 380cc injector good for ~70 HP What size mixture enrichment injectors have others used on I5 turbos and with what modifications and what level of success or problems? Please respond directly to or copy: gpowell@acacianet.com . TIA, -glen