Blaster bogging out?

I just noticed that the spark plug that was in it was a normal car spark plug and not a "small engine" spark plug. Would that make a difference in the way it runs?
 
As long as the heat range, thread size, resistance, gap, etc, are correct, there is no difference between "small engine" and "normal car" spark plugs. If you are unsure, like Specialized said, look at the number and brand and ask your local parts guy if it is correct for your application.