starting problems

Ok I have been having trouble with cold starts on our 66 and the we took it in for a freaken $450 tune up. I was hoping that this morning it would start right up but it seriously (sp?) took like a minute and a half to start- i was told by an nsra guy at a car show that i need to take off the small tube from my carb because it was making a vaccuum leak-he said to plug it up and it would not run as rough. any ideas or if this is what i need to do? Thanks-oh yea and how do i slow down the idle speed?

bump--???

i dont know about your starting problems butttttt to adjust the idol there is a screw in piece on the drivers side of the carb i believe and you screw in and out to adjust it!

I got the startin problem fixed and it runs a lot smoother now and thnx for the idle help