Our PWM board is a circuit board programmed to be the controlling computer of our machine. I will definately check up on the current ratings of it.

Battery packs in parallel sounds good.

What's really surprising is that these servos can pull up to 30 Amps. How much does a regular servo draw?

A separate battery pack for the spark plugs sounds like a good idea, but could you clarrify what interference you're talking about? (so I can explain to the rest of the team

Marcus