Like mentioned before, make sure you use what came off of your old engine. The newer engine could be a Bendix Rex Regina fuel system. If the new engine is still in the car , notice if the square looking ignition coil is mounted on the drivers strut tower. If it is then its a Regina system. The throttle position sensor on the throttle body from the Regina system looks the same but its a VDO sensor and you need the Bosch sensor from your old engine. It says Bosch on the sensor. Easy to make that mistake. Its also a good time to do the distributor seals and crankcase breather box. All these things you may already know but thought I would mention them. Hope this helps. Larry