What is 14057053 gmcfm?

What engine is this 14057053 on intake Chevy v8?

part # 14057053 4-Barrel Late Model Not Listed All 305 & 350 Aluminum passenger car camaro and truck 1980 - 1985 This is same as the cast iron version, not bad on stock or near stock engine, Comparable to edelbrock performer 2101 or 3701. Good junkyard find for replacing two barrel or cast iron manifold if you plan on using a quadrajet carb. Has good low end throttle response and midrange is ok, will not fit performer or holley carbs, not for racing, great for 305.