Diesel JD
Full Access Member
Timing is not all that much more difficult than in a gasser, but you need the right tools. Most/many people are using an adjustable strobe timing light and something like the Ferret pulse adapter these days. If you can find a good snapon MT1480 or 480 for a price you're willing to go along with go for it, but beware, because most if not all of the relevant replacement parts have recently been obsoleted and are difficult or impossible to source new, used may be expensive and sketchy at best. If you do buy one make sure all adapters and such are there and seem to be in good condition, at least the ones you want. An IP should not be bad within two years, and I have no idea what "servicing" the injectors means. Maybe he cleaned them? Well and good, but if the internals have already worn out of specs it won't do any good. I'd pull them and have the pop off pressures and spray patterns checked and replace them all if you get 2 or more bad ones, replace the affected unit if its just a single one and all the others seem healthy. You can get rebuilds on ebay for around 125 and new ones for around 175-225 for a new(not reman) set.
Running through there dragging the 5er means 2nd gear in quite a few places. I bet you just LOVE those traffic jams trying to get near those construction sites 
