This is a Used set of (8) Fuel Injector Stacks or tubes.
Fuel Injection Stacks 2 1/2" OD 2.43 ID 10" Long Hilborn NHRA Sprint USAC WOO
Fuel Injection Stacks 2.150" OD 7 1/4" Long FAKE Hilborn NHRA Sprint USAC WOO
Fuel Injection Stacks Extenders 2 1/2" OD 3" Long Hilborn IMCA NHRA Sprint USAC
Fuel Injection Stacks 3.1" OD 2.80 ID Engler Hilborn NHRA Sprint USAC WO Kinsler
AJ FOYT 1992 Auction Original Hilborn Fuel Injection Stacks Sprint USAC Indy 500
Ford Hilborn mechanical fuel injection 2 13/16 with 2 3/4 stacks