if your gonna run the p28 get the obd1 dist. and convert it to obd1, if your gonna stay non obd then get a 88-91 civic,crx si/hf dist. and you got your choices of running pm6, pg7 ecu or even a pr3 from a b16, thats what im running only problem i got was a ks code which im trying to fix right now cause the block dosent come with one.....ive been threw the rpm switch thing and it was nothing but headaches...anyway good luck.