This fuel log is a great solution for getting the perfect fit on your Holley or Demon setup. It features a -10 AN telescoping center log that is adjustable from 7-3/4Gg to 13-1/2Gg. It also features swivel ball socket ends that can be adjusted to clear various air cleaners and carburetor linkage accessories. Also includes two 1/8Gg NPT. ports for use with a gauge or pressure transducer. Its finished in a sleek black anodized for a great look. Kit contents includes two aluminum gaskets, two O-rings, 10AN Plug, and 8AN x 10AN port fitting.