I wrecked my 88 CRX HF and I found a 90 Civic DX hatch shell to replace it. I want to put my HF power train into the DX civic. The HF has mpfi and the DX has dpfi. Can i put the DX intake and exhaust on my HF motor? Or, can I put my HF engine complete into the DX? Do I need to change the ECU? Do I need to change any wiring? I am looking for the easiest and fastest method. Thanks for any input. I miss my 45 mpg car badly.