Dodge Other Heater Heater Core

Hi I Have A Problem With My Heater It Seems To Be Heating Up But Not As Hot As It Should Be Ill Have It On The Highest Setting And I Never...

I Just Got A 68 Dodge Dart 340 (5.6 L) V8 With Automatic Trans. When I Try To Put It In Park, Sometimes It Goes Into 'r' Instead. I Have To...