I had it set around 750 at the time. Even when I raised the idle to 900, it did the same thing. I only had to keep the screws out 3-4 turns when I opened up the secondaries exposing the transfer slots. Called Holley again today and they said to leave them closed. It runs best this way anyways. We have some rain scheduled here, so while waiting to work on it again I ordered a 4 hole carb spacer in hopes to increase the signal a bit and improve the idle.
