I have been deciding on what to do to my engine first.  I have had an intank walbro pump, hotwire kit, scanmaster, afpr, fuel, and vacuum/boost gages.  I was wonderig, would a cam kit be a good first upgrade to see some good gains?  Gbodyparts has a 212/212 cam kit for 300.  Or would the 204/212 be better.    What are your thoughts.
Oh yeah, and what are those cam buttons for. When I took my old 84 engine apart, the button was obviously in there. But when I go to performance websites, they talk about a roller cam button. There wasnt a roller cam in my old engine was there?
	
		
			
		
		
	
				
			Oh yeah, and what are those cam buttons for. When I took my old 84 engine apart, the button was obviously in there. But when I go to performance websites, they talk about a roller cam button. There wasnt a roller cam in my old engine was there?