performance mods?

['89accordlxi]

i have an 1989 honda accord lxi it has the a20a3 motor and from what i kno there not much engine mods available for this motor. if anyone knows the engine mods availlable id deeply appreciate the help for info. im wanting to get more power out of this motor. and one more thing, can this motor be turboed? from what i found out id have to get a custom manifold made.