Honda Repair: acura tl 3.2, acura tl, model car

Question
some mornings when i start up the engine she revs up to 2rpms then when it starts to idle down, the rpms dropdown a peg the rev back dropdown a peg the rev back up drops down and it does this repetively for about a 30sec. IT sounds like it gasping fo air.  After it idle down under 1rpms
it runs fine.  It has 190k , a 91 Legend  ever heard of this before?

Answer
I actually had the same problem,I tried everything from a leak in the intake,to resetting the timing but somebody told me it was because it was a older model car,the only thing I know to tell ya is to experiment yourself,sorry I couldn't help you further