What would I do?

I'd send the Q-Jet to Cliff Ruggles to be tweaked for my motor. Then I'd bolt in on an Edelbrock Performer RPM Q-JET #7104 intake manifold.
http://www.cliffshighperformance.com/quote.html

In my opinion, there is no better carburetor to meter fuel for an internal combustion engine than the Rochester Quadrajet.