This off-road inlet needle features a Viton tip and an adjustable 0.097" seat size for fuel metering in Holley carburetors. (Viton is a registered trademark of DuPont Performance Elastomers.)
Specifications:
- Brand: Holley
- Category: Air and Fuel Delivery
- Material: Viton
- Seat Size: 0.097", Adjustable
- Part Type: Carburetor Needle and Seat
- Product Type: Needle and Seat Assembly
- Sub Category: Carburetion
- Part Number: 6-508
FAQ
What seat size is this inlet needle?
0.097", adjustable.
What is the tip material?
Viton, a registered trademark of DuPont Performance Elastomers.
Is this the off-road configuration?
Yes, this is Holley's off-road inlet needle configuration.

