I bought this for my Holley 4150 770 CFM Aluminum Street Avenger. I use it with a 1970 LT-1 Z-28 clone fuel system. The faucet looks pretty cool and is well made. Very high quality machine work as you would expect from Holly. My problem is that I would prefer brass. It tends to stick to the flare nut and detach from the carburetor first before detaching from the flare nut. Normally that wouldn't be a problem, but with the limited wrench access these Hollys have I can't stick anything in thereβ¦