Quote:
	
	
		| 
			
				 
					Originally Posted by 91 Mustang LX
					
				 
				WHat?? isnt the GT 40 stuff for 5.0s like the best u can get??? i think ive heard u can get like 40 horse power from the gt 40 manifold. 
			
		 | 
	
	
 40 horsepower?!  Nope...not even close.  With aftermarket heads and manifold you might see around a 40 horsepower gain.  But just the intake, on a stock bottom end...more like 15 horsepower.  
I have an Edelbrock Performer 5.0 intake for sale.  It outflows the GT-40 & Cobra intakes.  The powerband is perfect for any street driven Mustang.  It makes power all the way across the board.  From idle...to 5500rpms.  I'm selling the manifold for $300 + shipping.  PM me if you...or anyone else is interested.