The Mopar guys love the Thermoquads, GM guys love their Rochesters, and everyone hates the Autolite carbs. I love all cars, I have GM cars, Ford cars, and Mopars. I like Mopars more than the others, but they were all great. I am the same way with carbs, no brand alliance. The Thermoquad is a mess to deal with to set it up correctly, everything is by bending and then measuring stuff, bend this lever to get so much clearance, bend that lever to get more pump action, bend 4 different levers at the same time to get your choke working, I mean what a mess especially when they have been through previous owners that have messed everything up. The Rochester is a total nightmare on a modified car, you get your big block Olds, Buick or Pontiac, and put a big cam in it, raise the compression, add some headers, an intake and your car will not idle, and to fix it is "simple", just get a bunch of drill bits and start drilling into a ton of passages, there are no real set drill sizes you need to go to (there are some guidelines written by "experts") but they all vary quite a bit in what they recommend, so good luck. A Holley has always worked for me, I drop it on an engine adjust the idle mixture screws and the idle and the car runs. It may need some tunning of the accelerator pump circuit to make it right, but that is really simple. You can get jets, gaskets, needle and seats at your local Auto Zone. Holleys always seem to run rich in the midrange and that is difficult to tune out, but they always idle and work at WOT. Them running rich is what kind of saves the day. The other factory carbs, on modified engines tend to run lean, and that is way more difficult to deal with, especially when you cannot get the engine to idle because it is so damn lean, and finding jets and metering rods is not easy.
