340 intake and carb combo

Have a 71 340 that has the orig intake/afb carb.. Carb is in need of rebuild/retore.. Putting the 340 into a 71 demon 318 I am saving. Opinions on if I should stick with stock intake and attempt to get this carb back in working order or should I just go aftermarket and what combo's are working for the 340's.. I have all the orig tranny/throttle linkage so figured stick with edelbrock in attempt to reuse it. Stock rebuild engine, nothing fancy. Thanks for the input in advance.
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It is it a Carter AFB or is it a Carter thermoquad that you have? In your first sentence you say it's an AFB but a 71 came out with a thermo quad. First year for the thermo quad I believe. That particular carburetor (the thermoguad) is a one year only. I think.