[QuantumMotorsports]

Could be an electrical prob. From what I have seen, the majority of idle problems with these engines is something electrical. TPS not set right, dirty connectors, etc. But the only reason that the brakes would affect the idle if it is electrical is the brake light coming on and changine the voltage slightly. I doubt this is the problem, but who knows. I have come to really hate the 5.0 EEC. That is why my 306 is getting a carb and mechanical points ignition. At least at first, I may get an MSD setup later on or something. But the keep it simple stupid method is my favorite and usually works good. You might try cleaning the electrical connectors behind the upper intake. That seemed to solve a lot of my idle problems. My car would randomly idle up to like 1600 RPM and then back down to 800 and go back and forth between the two. Anyway, that's what I've got to say about that.