Spongy clutch

I noticed yesterday when driving my 1990 5.0 in town that the more I drive it and shift it in town the more spongy for lack of a better word the clutch feels. Already I find that the clutch doesn't feel right. Is there any way to adjust it or a better aftermarket clutch cable to use? The clutch has to be pressed all the way to the floor for easy shifting.  

Are these some options?

Firewall Adjuster?

http://www.uprproducts.com/mustang-billet-micro-click-firewall-adjuster.html

Heavy Duty Adjustable Clutch Cable

http://www.uprproducts.com/mustang-adjustable-clutch-cable-79.html  

well, first of all, UPRs stuff is awesome. That's what I run in all of my mustangs. But that said, it could be a cable that's getting ready to die, a factory quadrant that's worn out, or even a worn out pressure plate. If you buy the UPR quadrant, cable, and firewall adjuster and it still feels weird, it could be the pressure plate.  
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Sharad Raldiris - 1989 LX 5.0

HMM well supposedly the transmission was recently rebuilt so I will try the adjustable cable and firewall adjuster first. Thanks for the advice...  

don't forget the quadrant!  
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Sharad Raldiris - 1989 LX 5.0

Ok I made these changes and it was worth every penny. Totally solved all my problems.  

I had the plastic quandrant replaced on my 1986 Turbo T'bird, and it'd slip on hills...so i put the top of my foot behind the pedal, pulled up towards the dashboard, heard a CLICK, and did the adjustment they did not.

It may not help...but it sure won't cost anything.  Good luck.  For sure, if you replace the quadrant, grab a BBK or other aftermarket metal one.  

I replaced the cable, quadrant and installed a firewall adjuster all included in the BBK kit from late model restoration and it totally fixed my problems.. I guess my post wasn't clear I am sorry.