Bill, I would be interested in hearing about that. The good news is my bike is mag fired so I only need the battery to run the nitrous solinoids , A/F gauge and the fuel pump so I dont need a big one, so the cost is....uh, better. LOL
Right now the battery I have is only a 3AH and 35CCA, and works, but not great. The smallest Antigravity blows that one out of the water.