Go with the Quadrajet, Edelbrocks seem to be forgiving, but getting them set correctly for the engine/conditions has been a tough nut for me to crack! Even after installing a re-build kit!

I understand that you need to pay attention to mounting of the carb to the intake manifold, I have an edelbrock manifold and it seems that I need to get some type of conversion plate to accept the Quad...

Good luck! and be sure to let us know how it turns out!