Follow Spares advise and get a Pertronics electronic ignition to replace the points/ condenser. I also installed the matching Flamethrower coil from Pertronics and it made a HUGE difference in starting, idling, pickup and WOT! Its probably the best upgrade I've done to my 170. Also, it never hurts to get a rebuild kit and go through your carburator. They're really easy to rebuild. One thing I had trouble with was a small spring in the bowl needle, had to go back in and replace it with a solid pin in the needle to get it to stop loading up when at idle. Hope that helps!
		 
		
		
		
		
		
		
			
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77 V20 cuddy with 170 I/O Mercruiser 
72 16ft. Carolina w/a 25hp Evinrude
			  
		
		
		
		
		
	
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