Not wanting to reinvent the wheel. But are there any advantages to running a grose jet in a stock RD350 mikuni carb? 
Do they even make one that would work? 
			
			
			
				i think the standardization of viton tipped needles made the grose jets of little advantage. in the days of metal to metal seats though, yes., better.  
			
			
			
				 :popcorn2: Something I was wondering about just a couple days ago.
 My Austin Healey had a leaky fuel needle valve in the front carb.
 Ordered a Grose valve from Moss Motors and fixed the problem perfectly.
 Wondering if I should order two more for the other SU carbs....
 I wonder if the thread size and valve length would work on an RD carb?
 cheers,