Electricity, Battery, Cable Question snell Anabell

I’m just making,new power in Punto. Front the HB rear the ZB, ne Hawker. Had 50s before to the additional battery and from the ZB to the Subamp. I had the two frontamps at the HB. Is that if I only pull the 50s back and connect all three amps to the ZB? Because I can’t get the 35s down. Power snnell, wants to get out again