First off, thank you to everyone for thoughts on this.
>the primary idle screws are backed all the way out
>the secondary idle screws have been completely removed to make certain they are not the issue
>the choke is not hanging up on the fast idle cam so I am certain that is not causing the issue
>the BJ/BKs worked great on the previous engine but after sitting for 4-5 weeks, decided not to idle down
>the second set of Holley carbs I have idle beautifully on the new engine. Which leads me to the conclusion the problem is somewhere in the BJ/BKs.
Question-- this seems like it could be a vacuum related problem. Like extra air is coming into the engine from the carbs and raising the idle. Am I off track?
>is it possible the diaphragm that opens the vacuum secondaries would cause a higher idle if they are torn or worn?
>is there anything else inside the carbs that would introduce more air and increase the idle speed?
>would the cork gaskets around the idle mixture screws cause a higher idle if missing? (I need to go check them closely)
It is a mystery these carbs worked well on the old engine and now won't idle down. Again, thanks for your thoughts.
Jeff
PS - I have the secondary idle screws removed and plan to install the screws Drew suggests to make it easier to adjust the secondaries.