I don't know who assembles the wedge crates, but I can tell you from experience with a Cummins built Hemi crate that Stevie Wonder, working in a barnyard, could do better work! Like Brad said, tear it dowm and check everything! That said, the Holley HP950 is one of the best performing, out of the box street carbs for these strokers. I have used several and been very pleased with the results.