Hello,can anyone with these mods or similar who are using 550primary and 1200 secondary injectors tell me what there duty cycle is at 1kg/cm on stockport engine- mods are intake,frount mount,dp,mp,blitz catback,apexi pfc and bnr33 fuel pump at 38psi base fuel pressure.My car keeps choking after 5500 rpm and my duty hits 92% at 7500rpm,i havent got access to a wideband 02 so dont want to fiddle to much.Thanks Roy.