Holley Equipped Billet Fill Cap - 241-228 motor-mounts 1/8" NPT barb fitting for

1/8" NPT barb fitting for boost reference port included

5mm or more

Internal data-logging standard with a huge 2GB of memory

If you prefer a full stainless steel system covered by our Lifetime Limited Warranty

Brand Holley Emission Code 5 Jet Number 156 Jet Size 0

Holley Equipped Billet Fill Cap - 241-228 motor-mounts 1/8" NPT barb fitting forOverview: Looking for an alternative to your stock fuel cell cap or maybe you need a fill cap for that custom oil tank or valve cover you are building? Well, look no further! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley caps are CNC machined from 6061 T6 billet aluminum and they feature a bright black anodize for great looks and corrosion protection. Each cap features a laser etched Holley Equipped logo so you