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					Originally Posted by ProdigyCustoms
					
				 
				My imediate thought was air cleaner. Also, do not under estimate drivetrain loss. I have seen many cars loose 25% on a RW dyno. So you may already be at 500HP before final tuning, which would not be that bad after all. 
			
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 I should only have around 10 to 15 percent drivetrain loss. TKO 600 with 373 gears in a 12 bolt with a true trac. We had to downsize the filter by about half from stock.