Holley Metering Block - Shiny Finish Hose Cutter Blades The ONLY correct fitting to

The ONLY correct fitting to use is a contoured port fitting with an O-ring seal such as :Part # AT985008ERL

You can install them in minutes and enjoy them for years - our exclusive Dura-Flex 2000 material is designed for added durability and flexibility

adapt 4150 to 4500

and any other engine w/ 1/2" fuel rails w/ SAE style fuel tube

Ford Fullsize Trucks 2005-18

Holley Metering Block - Shiny Finish Hose Cutter Blades The ONLY correct fitting toHolley Metering Block 34 13S Shiny Finish (0 3310S 0 80508S) Metering Block Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include