how many runs??

[juanmgarza26 10+ year member]

How big is your alt, how many batts total? You need enough capacity for you alt and whatever front batt will add. I'm betting 2 runs of each will be plenty.
IMO overkill = waste of money. Figure out what you need and do that, anymore is a waste...

Alt is a mechman 270, and batteries total of 2

 

[mlstrass 5,000+ posts]

Alt is a mechman 270, and batteries total of 2

So you will be pulling 300amps at most from the front....2 runs of each is plenty