ok so i have a jdm b20b block and a OBD1 b16a jdm head that i am going to boost in an EG bubble. i need verification on what sensors that are on the block. im assuming one is an oil pressure sensor but i am not sure. what else needs to be done to make this block OBD1 with no Check Engine Lights? do i also need an OBD1 alternator? all help is appreciated i can take more pics if that will help out