I know they call for the odyssey pc925. I know some have slid in a 1200 into the FFR spot. But, my question is, if I go down to oreillys and get a battery, what stock vehicle battery would fit? Is it like everything else FFR does and a 87-93 mustang battery would fit? Does the 925 have any problem starting the coyote? (I typically like to use parts such as this that I could get locally if needed quickly).