85 ecm converting to 87

You will need 87 ECM,87 MAF sensor, 87 MAT sensor, wire for MAT with plug for the ECM.
You can also go 87 ECM,85 MAF, have a chip burned for the 85 MAF, with 87 ECM.
You'll need to use the cal-pak(little chip) off the 85 ECM.