N Nedelcu New Member Feb 4, 2019 #1 Messages 1 Location Romania Feb 4, 2019 #1 Helo. I have a Renault Express 1.1. It's running using a Ducellier R249 D61, and the advance curbe is wrong for my type of engine. I search for someone who needs my delco and give me an R335 D83. Thank you!