Do a search and then you can ask a question if you don't find what you are looking for.
I did a quick search and found a couple of posts with similar symptoms to yours and the recommendation was to open up or resize the down channel restrictors (DCR)
"Down Channel Restrictions are part of the idle circuit in the main body. The size of this orifice will restrict fuel flow during idle. When increasing compression and cam on an engine, these should be enlarged to allow more fuel to flow with less vacuum."