B2600i performance

Hi. Looking for a little more power from my '91 b2600i
couldnt really find anything by searching.

Ive cut the bottom out of my stock air box and it seemed to help my milage a little. Looking at adding an electric fan also. but is there any little tricks or parts that help these little motors out? Im still used to driving my 355ci s10 that I built lol

also, truck is a 5spd and the motor was from a mpv that I installed recently.

not much you can do... No header or anything... Electric fan would help, and you can get an older civic intake for it. Thats about it though