Nope it ain't you man. And I'll tell you another thing, if you have a lopey cam in that 383, the vacuum secondaries are a to get to kick in as well. I took it to a couple of Holley experts and they told me to throw it away and get a 4130. Ultimately I want to get mine running with a good Q-Jet, but it probably ain't gonna be this year. By comparison the edlebrock was super easy, has good cold weather manners, and works well for the street, but they bring the suck off-road.