I was super super nervous about buying one of these knockoff carbs due to all the bad videos and reviews online, but it was so much cheaper than a real Holley and i didn't want to spend that kind of money until i knew the motor ran. it works great! put it on with no adjustments and it fired right off no leaks or anything! hopefully it holds up for long time it looks just like a Holley, there's some cheap shortcuts here and there but it works great on my v8!