yea i kinda wanna fine toon my 1990 integra ls 5 speed with the most horse power i can get for little to no money

i aready have some mods like
fool exsost and header
cool air intake pluss a cheep tmc super charger but it does not make boost jest provides air so the motor does not have to suck air in./ it already their, but not power full enuff to make boost, makes it quicker but no horse power
and an aem fuel rale

if you have any tips on how i can gane more horse power/please let me know