Hoosier Hurricane (12/29/2012)
Ted: I have been known to solder the holes in the jets and re-drill to a smaller size. Did this back when I was running my dual quad '56. I talked to a Holley rep at the nationals back in those days, and told him what I was doing. He said Holley recommends using only a 1/2" drill when drilling jets. I told him that there would be nothing left. He said that's what Holley recommends, then buying new ones. I told him to ship me an assortment of T-pot secondary jets when he got back to the factory. He told me to keep soldering and drilling. John. Thanks for the soldering tip as that could very well be what takes place. And what the Holley rep says explains the lack of secondary jets sitting loose now. I suspect any secondary jets the Ford dealers had in their parts bins went into the trash many decades ago.
Blockhead (12/29/2012)
Ted, I don't have those secondaries jets but I wanted to point out that the correct secondaries for the 1957 dual quad carbs are 55's. That is what Holley installed in them (ECJ9510AA/AB). ... Bill. I have two pair of 1434’s sitting here and they have the stock #55 jets in the secondary sides. Because the secondary venturies are the same size as the regular Teapots, I’m guessing at this point that it’s more an air bleed thing rather than a dual carb nuance. About a year ago I did a factory dual quad setup for someone and it was on the lean side. On that setup, I installed larger secondary jets. I’ll have a better feel for what some of the other Teapots do as pairs once they are put on a dual quad intake and actually ran.