might pay you to phone around, it can be hard to find a dyno place that stocks dellorto jets. you need to find someone that has worked with them before, especially if you are going somewhere that has no jets and can only drill out what you have. what model dellortos are they?
if they are emissions carbs then dont let them try to tune them like non-emissions ones. emulsion tubes and venturies are specific for these carbs and need to be the the right ones for them to work properly, otherwise you will have all sorts of problems.