MSD, can you tell the difference?

When I was drag racing my 68 barracuda, 360, I used the gold box then switch back to the chrome one for the street. I had a problem with the mopar performance pickup coming apart. Never had a box fail though. Then switch over to MSD 6AL box, distributor and coil. Fired right up, exhaust note sounded better, easier starting, better street drivability. At the time I got it, I was still learning about the holley 650 double pumper, especially setting the float, power valve and jets. Flooded out a few time but fire wet...over all I was happy with mopar performance stuff, like the msd better.