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			I have a service package JL8. Can I use the stock 309 master cylinder or do I need to have it modified for the larger 1.25 piston? Any help would be appreciated. 
		
		
		
		
		
		
		
		
	
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			#2  
			
			
			
			
			
		 
		
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			I would think you need to use the larger bore and piston to balance out the pressure properly. 
		
		
		
		
		
		
			
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	69 Z28 JL8, #'s match - being restored  | 
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