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					Originally Posted by  Dumpling
					 
				 
				I would be worried about 48IDA Webers being able to support much more displacement.  I thought they were pretty near their limit at 427 cubic inches. 
			
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 With a 45 venturi, that should be enough for a street combo.
Then if that's not enough, make them venturi-less with a spray-bar auxilary venturi.
Gary