Id check the fuel pressure. See what it is with the vacuum line attached and detached.  My pump was making the same noise, and i found the fuel pressure was low. Check it out. Best to find out the easy way than the hard way infront of every one at the track. 
		
	
		
		
		
		
		
		
			
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				'95 GT convert.  K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes
			 
		
		
		
		
		
		
	
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