Q.1 I was looking at buying a Optima Yellow Top, 650 CCA rating. It will be providing power for a MTX 1501D and a MTX 4x85 watt (cant remenber the desc. no) Will this be enough or should I look at some thing bigger?
the yellow top is fine. you can reference the discharge time based on current draw on their website to see how long the battery will last with ~100A of draw. the battery only helps if the engine is off. when the car is running you'll want a HO alternator to handle the drain.