I think that all the Pontiac Batteries were on the driver side. Most of the cables would go down a tube between cylender 5-7 or went down a tube at the back of the block. Since you have headers you could buy a longer cable and run it down the pan rail. some of the newer birds did that and it worked OK. You just have to play with it and make it fit what you want to do. Since the car isn't stock, ie., headers, your locations are limitless. Have fun!