SML: 1995 Nissan 200SX SE 1.6L HELP!!

[Jelatomio]

Hello, i own a 95 200sx 1.6 L engine. i have already added a weapon R intake 
system, a focuz header, a focuz muffler, new plug wires.  i dunno what to do 
next.. i want to beat the crap out of the hondas in my town. but i am not 
sure of what i can do next to this engine. especially without upgradiung the 
computer first. i have found undrive pulleys, and a new throttle body. i am 
just in need of some help and information pleae help a fellow nissan owner.