87 Prelude Circle Track Car Exhaust

I have a 87 Prelude with the dual carbs that is going to be raced on a dirt track. I was wondering if open exhaust or muffled would perform better? Didn't know if a little back pressure would help. Thanks

Get just a little. Not alll the way behind the car. Just get some race headers and run it to them.

I have to run the stock exhaust manifold. Thanks

That sucks. When I got my headers on, I noticed a nice gain in torque. Best of luck with everything.