Hello and welcome to the forum Cody! Take a look at the links below, one of which is an earlier thread where this is discussed. The other one seems to also go over the timing process. I'm sure other members will also chime in with their experience. Hope this helps you a bit and please let us know if you have any other questions.

standard injection pump om603 to om606

OM603 or om606 Injection timing with timing light adapter