I just replaced my spider about a month ago, except I didnt use original ac delco parts. I ended up buying my unit from car quest. I think the price was $388.00 plus the mounting bracket was another $50.00. Followed the directions about the routing and have to admit everything went smooth and other than a slight vibration at idle ( which the truck had prior to the swap) the truck now starts and runs great and did I mention the noticeable power increase?

 

False alarm. Did some troubleshooting and the misfire/hard starting turned out to be bad plug wires. Replaced and now it runs like a top with the Delphi unit.

Sorry don't mean to hijack this thread. Just saying don't overlook the easy stuff...

Joe
98 Blazer 4x4
4.3L Vortec auto

 

Update: I finally got the injector insulators out of my intake. I made a tool that went in through the center of the insulator and hooked from the bottom on 2 sides and they pulled out with little trouble.

I've also purchased a Delphi FJ10565 spider injector unit for the 2004 blazer. Although most websites say it doesn't mate to a 2004 Blazer 4.3, it works fine. It installed perfect, didn't leak and now the car is up and running fine.

Thanks to all for you input..

 

Glad you got it all fixed up!