I recently received a new EMD GP40 locomotive. I am totally new at this railroading and wonder if someone could tell me about how many rolling stock cars should be or could be pulled by this locomotive. I inherited a large number of rolling stock cars a few weeks ago and i do not want to ruin the loco.

I recently purchased a HO scale train by Bachmann but cannot find any information on it. Item #00634, Silver Star with figure 8 EZ track. Trying to determine the age.