Holley's fuel bowl sight plug window kits will enable you to eyeball the carburetor's fuel level without ever having to remove another sight plug. No muss, no fuss, no mess. The 4150 double pumper fuel bowls come polished with a single fuel inlet on each fuel bowl.

Made specifically for 4150 Carburetors with rear accelerator pumps.

Features:
  • Fuel Bowl Sight Window Kit
  • Holley's fuel bowl sight plug window kits will enable you to eyeball the carburetor's fuel level without ever having to remove another sight plug. No muss, no fuss, no mess. The 4150 double pumper fuel bowls come polished with a single fuel inlet on each fuel bowl.

    Made specifically for 4150 Carburetors with rear accelerator pumps.

    Features:
  • Fuel Bowl Sight Window Kit