Hi, I just recently got a four barrel intake out of a 1966 LeSabre from a wrecker that had a 340 in it. I am now trying to figure out what carb will work with this intake. I'm going for performance, so what carburetor do you people recommend. Would a Q-jet spread bore carb from edelbrock work Would I need an adapter? Is my manifold spread bore? I'm kind of confused about this, any help would be very much appreciated.