Well the biggest problem I had when I first got it was that it was running super rich and I could not figure out why. I sent it to holley and they replaced the whole front float bowl and metering block as well as the baseplate. Then it stopped running rich, but they put some kind of resin on the sides of the float bowls to prevent leaks, but it is not very good stuff and there are leaks anyway. The needle and seat assemblies also start leaking sometimes and I have to re-tighten them. They also forgot to put the springs in the idle mixture screws when they sent it back to me, so I had to put in my factory ones.
Other than that, it seems to work pretty good. It's just frustrating, I wanted a carb I could buy and just bolt on without issues, especially at that price, but it wasn't the case. Holley will fix it for free if there is anything wrong, but you have to pay the shipping to send it to them.
One thing I forgot to ask earlier, do you have a factory metal fuel line running up that screws into the front of the front float bowl? Because that is how this carb is setup.
