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			it is possible to safely bore a 406 cast L78 all the way over to 4.25 bore or is that too far to attempt w/ this casting number?? thanks. 
		
		
		
		
		
		
			
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	67 Rs modified stormer z28 482cu in.yenko camaro 67 327 camaro 69 SS 396 camaro  | 
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