I was told that I have an 872.2 T1, but I would like to verify. Where are the block numbers, I can't find any numbers. Also I a vacuum line issues, but I'm slowly getting them fixed. I found a diagram on www.thedodgegarage.com. My problem is where is the intake vacuum main source. I have one next to the blank knock sensor, and the other is beside the fuel pressure reg.. Not sure if one of these areit. The diagram shows more than one vac. line going to it, but there is no multiple T nipple. Thanks alot.