Carter Qjet

[Dean Oliver]

For what it's worth, I have built quite a few of the Carter manufactured Q-jets. Yes the metal does seem softer and it is a little more difficult to work with (drilling, etc.). But in my experience, I have not seen any of them to be a problem. I own one of each, and they both run the same on my car. To add to Rich Aceves' point, I have not seen any true advantage to equally prepped Rochester, Carter, or Edelbrock Q-jets. They all have variations that can lead to some cores being faster than others, regardless of manufacturer. Unfortunately, the only way to tell how fast a particular core is going to be is to build it and take it to the track.

Dean