I have a 5.3L chevy that I'm putting in HHO. I've already installed but not made final connections of 2 wet cells with 11 plates measuring 2 3/8" X 4 1/4". I also have an EFIE and a Scan Gauge. Ive read in different places that i need a PWM to prevent over heating. Do I need a PWM for each cell and at what amperage size for it(them)? And What gauge wire to make connection? Also what is a good brand or model and the place to buy?

Thanks