I'd say it's because something is shorting out, or else it's otherwise drawing more current than the rating of the fuse. How big is the fuse, and what all is getting its power through that fuse?
make sure u have all of ur wires securely tightened and no wires are naked. the hot could be groundind out and before messing the bat up it blows the fuse.other than that try what ridgerunner is sayin.
A forum community dedicated to J-body owners and enthusiasts. Come join the discussion about performance, engine swaps, modifications, classifieds, troubleshooting, maintenance, and more!