OK guys, been a few years but I'm back. Got a silly question, is there supposed to be a gasket between the Throttle Body and Plenum?  I can't tell if I have one, looks like not. I have a slight hesitation just off idle and can see my TB is a little dirty from the outside so I was planning on taking it off and cleaning.
 
TIA
	
		
			
		
		
	
				
			TIA