I have a 96 Blazer LS 4.3litre Vortex that is in need of a new injector block. This I think is a CSFI type identified in a picture in the the Chilton manual. I understand each injector is calibrated for specific cylinder. Is there any aftermarket units that can be used successfully or is the AC Delco the only way to go? Cost if the question however more importantly it needs to perform properly.

 

Was that a Private Messaging function? I had no idea. After searching for about an hour looking for the "New Post" button I was very happy to find anything that resembled it. If it was in the wrong place, sorry about that. It was a simple question I thought but I understand these days even innocence on line can get you into trouble and there are bad people out there. You guys have already been a great help so no problem on this end. I will keep looking for the button!