I use a quick fuel black diamond carb on my Lemans. Qjets are great and have lots of fans. But if you are not absolutely set on that QFT has lots of advantages. The Black Diamond carb is jet coated to reduce heat, it has sight glasses in the bowls, four corner idle setting and one thing I like it has no choke pull off, those things always get stuck eventually.
Quick fuel uses a cut in the back of the choke plate to accomplish the same break as the pull off.
Mostly though the QFT Very easy adjustments of all of the carb circuits. On top of the carb are the four idle air bleeds,...little jets and the four high speed air bleeds,....you can change them with a screwdriver. The primary and secondary jets are ez to change same as a Holley, but the Power Valve Channel Restricors PVCR...which control how much fuel your power valve actually delivers, once again are mini jets you can change with a screwdriver. Holleyís You would have to drill. Of course the idle feed restrictors is the same easy to change.
In addition the vacumn secondaries are adjustable two ways, first the spring can be changed to get it right and then the vacumn to the spring can be adjusted with a screw right on top to fine tune it in.
All the jets or bleeds or springs are readily available from Quick Fuel which Holley now owns. Qjets do require the metering rods and assorted parts that are sometimes hard to source. Some may have stockpiles and can easily work on them. I donít have that stockpile and donít want to hunt them down.
So there is more than one way to do it and I like to curve the carb myself by dialing it in with the correct Air Fuel Ratios and engine feel, both should match.
Some like Edelbrock or Demon carbs or Holley or Carter,...some like fuel injection. There is no wrong way,....just your way!!!