Potato -- Trinity makes 1400scr packs; you should be able to get them at your LHS or by mail order.
Mike -- We still have the car but we're not sure what we will be running this season. Sam's leaning toward GT1 and 2. The 1500 rule is a local club rule; the owner tries to keep the cost of some of the classes down, such as Mini, TL-01 and trucks. However, he's going to follow TCS battery rules for stock and modified and allow up to 3000.
I thought the water dip method eked more HP out of the motor; everyone at the nats a few years ago did this to their hand out 540s. Does it just improve electricity transfer?