Distributor
I had a negative experience with DUI. Ordered a distributor with a custom curve. Installed on new stroker on dyno. It fired and worked a couple of times and then nothing. Another brand of distributor(MSD) fired right up. Called DUI. They said I could send back but it would be a while before they could test. Nice lady on the phone indicated they had a "pile" of them waiting to be tested. I am going to have tested locally this week and I will advise results. I googled DUI issues/problems and it seems many of the issues folks have are with grounding. This is only my experience and I will update you as I learn what my issue is.