I have a F22B1
SOHC Vtec
I-4
145HP
147 Ft. Lbs

so far i have added a cheap intake, axle back stainless exhaust. The motor hasn't been driven hard and has been well maintained.

What can I do to it performance wise? I don't have the money for forced induction. First i want to go through it and clean it and tune it all up, fresh fluids, get injectors cleaned, la la la but THEN when i get some money i want to get a little more power out of it, what can i do?