Ok finally got my baby running, replaced fuel injectors part# 12669384 and fuel rails and ignition coils and spark plugs. All AC delco dealership part numbers. and she is running fine. this was a long journy and i would have saved time and money if i just stuck to dealership part numbers. i did have to replace an oxegen sensor too. hope this helps someone.
p.s. use oil to lubricate the blue o rings on the top of your injectors when putting your fuel injector rails back on*
Glad to hear! I always use mystery oil on my injector o-rings .