while ive got my intake off changing gaskets I thought that i might check the injectors to see if they we're still good, is there a test i can do with a DVM to check the electrical parts?
You can't really test the injectors. While the intake is off you good always give them a good cleaning and put new screens and caps on them. Remember fuel injectors can last 300k+ if you take care of them through regular maintenance like fuel filter and occasional fuel injector cleaner.
they can be flow tested but its fairly expensive to have done (Same price as new injectors i believe). just clean them out and freshen them up and you should be good