your injectors are good for now, unless you get a blower, but id suggest, subframe connectors (welded in), before you get a strut tower brace, or both, if you have the cash, fuel pressure regulator, tb you have is good, being a cobra.
headers??, i would do a longtube setup, you wont regret it, it may set you back about 500 or more if you get cats, i would look into ordering some parts from summitt, or check around classifieds.
good luck...

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Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer

Race weight: 3,120
E.t-13.57 with 26x10.50's e.t. streets. 1.88 60'
mph- 99.92 mph