Bought 2 Delphi pumps in a row and both bad. Is there a Walbro pump that can be changed out and use the existing fuel pump hanger? I did do a search and didn't find the part number as 98 is like the older style with the solid one piece fuel neck. This is my daily driver but needs to be reliable. 1998 5.7 Firebird. Any help would really be good right now.