[Bill Baer]

If you have room for two batteries, then the CSR 24-volt system is tops. Nothing beats spinning over a big inch engine than 24 volts."

I agree with John, I think the 24 volt stuff is a better technology. But being a bit of a cheapskate, I use a red top optima and I buy a new one each year, I also use a powermasters best (Biggest) starter and an east coast electric 70 amp alternator. My set up is a fuel injected 14:1, 540 and it cranks over fairly easy but it can be hard to start and we do crank it about twice as much as of carbureted competitors need to. I also have heard some negative comments about the Optima batteries but to date I haven't had any problems. Hope this helps