[s-cars] running a little lean?

[* FAIRCHANCE PHCY]

My 95.5, stock turbo, 3 inch downpipe back exhaust with 
cat, mtm 1+ chip seems to run lean between over 5K rpm and 
20-25 lb boost. It will go the the redline but feels like 
some more fuel will make more power.  Since my stock 
injectors have 210K miles, I thought about trying some 
racetronix 37 lb injectors, they're cheap enough. Anyone 
know if they will work alone or will I need an adjustible 
FPR.
thanks,
Dave O'Neil