I searched for some injector info and also talked to the tech at Hahn and he wasnt able to give me any upgrade advice. I have the HRC Stage 1 kit, soon to have Howell bottom end kit thrown in there b/c i blew my 4th cyl. I will also be putting on an IC and upping my boost to maybe around 10 psi...what size injector do you guys think i need to go with? tia