Will I need better electrical?

[91Chevy 10+ year member]

What are the specs on your main battery?

 

[Bobby322 10+ year member]

idk its just the stock battery

 

[91Chevy 10+ year member]

idk its just the stock battery

Before purchasing multiple batteries I'd upgrade your main battery. Get something like and Interstate or Deka Intimdator; get a quality main battery then gauge what you need off of that.

 

[BassAddictJ 5,000+ posts]

MINIMUM - 1/0, big 3, big battery(ies) of at least 2000 crank amps.

ideally you want all this plus an HO alty of at least 200 amps.