I've been doing some reading and research on the tq benefits of having the proper collector length. Seems this can be worth some very good tq on N/A engines.

But my question is how does it work when supercharging? I run a 110 lsa cam, so I have quite a bit of overlap. I imagine the boost pressure already does a good job of clearing the exhaust gasses from the cylinder, and if so, how much would I have to benefit from running a tuned header extension at the track?

I'm currently running a dual 3" system with ultraflo mufflers, straight through type. I would like to dyno the car with the system on and off-open header, to see any change in results, and I was considering also building some header extensions to try as well. Would this be worth my time?

It would be a pita to swap the exhaust every time I go to the track.