As far as the timeing goes this may sound nuts but it would help if you advanced some more when I bought my car it hade most of its current mods already on it and the timeing was at 22, the ticking could be that you need a oil change or higher weight oil, or even a rod 
 
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'93 Black GT 
Pro 5.0 shifter, Flowmaster exh, K&N cold air, 
Jacobs ignition and Coil, Sport Suspension, Ram clutch 
Cervinis Mach Ram air hood, Cooling Fan, Underdrives. 
 BBK headers, H-pipe. 
 
 
		
	
		
		
		
		
		
		
		
		
		
	
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