I need to get a new battery for my 1970 Charger. It's a choice between a 600 cold cranking amp Mopar Performance battery or a 800 cold cranking amp Optima Red Top battery. My motor is a 500 hp with 10:26-1 with MSD dist and MSD 6 AL. I was using a Optima but it only lasted 5 years. The MP battery is a lot cheaper than the Optima. Which one should I get?

[img]http://www.imgur.com/hxlGUJt.gif[/img]
4-speed
3:54 Dana
13.01 @107.93 with street tires (not hooking up)