Welcome aboard, Nate.
Please take a moment to click the User CP link off to the left and complete your BenzWorld profile re: vehicle and location as that is often useful information.
If you scroll on down the front to the Sedans section and look for the W210 forum, there you will find lots and lots of useful information about your classic 210, along with a few others that are fans of the 4.2L V8.
Take care and enjoy the ride,
Greg