I use an Ofna chrome top that came "ready to run" (with 12v battery and power panel) but I recently got rid of the Gel-Cell battery and put in two stick packs. Whichever starter box you do go with, just remember to SAY NO TO THE GEL-CELL! Dual stick packs give you more voltage, meaning more power to start your high compression engine. Another option some people are doing is using a 4s Lipo pack.