so im new to the honda scene an recently picked up a 1990 honda prelude si, i got it for free an it runs great just needs some brakes up front, anyways i need some help figuring out what engine i got, from what i know its a dohc non v-tec an thats about it, so i would apprecitae any help and some opinions on performance parts thanks!

 

Look at the engine block right by the starter and there will be an engine code. It will be B21A1 or B20A5. The best 3g resource is p r e l u d e p o w e r . c o m. Without spaces.