FivePointOhh

get gears, u/l control arms, and drag radials. from a dig you'd spank that thing so hard.

also ditch the platimun plugs, replace with autolight 25's

86GT 93LX

one thing for sure your car is really heavy.stock 85-93 foxs will own u too just based on the weight.the exaust is great place to start for alot of people since they are after a more aggresive sound anyways.as said already get rid of those plugs autolites are the only plug i will use on these motor and i havent found a car yet that runs better off the plugs u mentioned.keep in mind all the smal stuff adds up/ exaust may only gain 5-10 hp same with a chip, which are garbage in my opinion, but unless u wanna spend some dough on heads and intake and a cam i dont think u will even feel a differance with anything but gears thats been mentioned