7028261 Rochester 4 barrel quadrajet core for rebuilding. Correct for 68 Firebird and Tempest 250 OHC Sprint with manual transmission. Hard to find carb. This one is not a later service replacement carb. It has 7028261 HH with no other numbers like the service replacement carbs do. Has a sticker on it where it was re-manufactured at one time. Fuel inlet threads good. $200 shipped to the lower 48 to forum members.