Question Should I place my Spark Booster in front of the amp or is it better to run it in the amp's FX loop

Answer The placement really depends on what you are looking for. If you place it in front of the amp the Spark Booster will boost the pre-amp signal in your amp and create a more overdriven sound, whereas if you put it in the loop you will boost the volume of your amp as the pedal will therefore be placed after the pre-amp section.