I have an edelbrock 1406 on my 78, but i had it around and stuck it on. it does great, and a holley will too, but you will still get the power, and get better fuel mileage out of a quadrajet. In an edelbrock and holley the primaries and secondaries are the same size. In a quadrajet, the primaries are smaller, giving you the velocity you need for easy driving, but have huge secondaries for when you need them. If i hadn't have had an extra edelbrock sitting around, I'd have rebuilt the quadrajet that came on it. The QJ will be excellent unless you hot-rod it, and even then, if you know how to tune it and find the parts, a QJ can keep up with other carbs.