I had more carb. related headaches with a small block (327) that I had once, that I finally bit the bullet and bought a brand new Edelbrock 600cfm electric choke carb and never looked back. Right out of the box I had to do very minimal adjustment, and plan on putting Edelbrocks on my future projects. I've used an Edelbrock carb on a quadrajet manifold with a spread/square bore adapter, and also on a Edelbrock Performer manifold with 1" spacer, both work great.
