Eldelbrock Preformer intake manifold, fits 304,360,390,401 Jeep v-8 motors 1970 - 91. These manifolds are excellent  from idle to 5,500 rpm, providing good low end torque and mid range power with excellent throttle response, the Performer manifold is better than the stock manifold. I've owned quite a few of these and like them a lot, I ended up with an extra one so it's up for sale at a fraction of the price of a new one