Demon Needle & Seat Hardware Kit. These kits are used on Demon 2 & 4 barrel carbs. This will also fit similar style Avenger, AED, Holley and QFT carbs.
Holley QFT Demon .110 Needle and Seat BULK
Holly Carburetor Needle and Seat IHC#122540-R90
Edelbrock Carburetor Needle and Seat 1465; Off-Road .094 in. Viton Spring Loaded
Edelbrock Carburetor Needle and Seat 1498; Performer & Performer AVS 0.094 in.
NOS Carter Carburetor Needle and Seat Assembly 25-186S
Rochester GM Carburetor Needle and Seat Assembly 7012907 Model Car Parts