The TR2 can be a challenge, but they can be made to run and run well if you are willing to tackle the learning curve. I've actually spoken to the Grump about it and other TR details. Growing up with my Pop- "Plowman" I've had one of the best resources a guy could want for running dual quads. Now getting input from Grumpy and then those two together talking multiple carbeuration- a guy's head could start spinning.
You've got to restrict the liquid line on the idel circuit AND you have to run an CD ignition. I've always run MSD (though I'm gonna try to do it with and older Grant box on my sister's 69 Nova).
They did offer an intermediate plate for the TR2 to help remove some plenum volume and extend the intake runners. This was a to help make it be more street friendly. We've got two of these intakes, one has the plate.
You can also get creative and kock the plenum down. Here is an example of that.