Beating an SS camaro with a B18C and no forced induction or Nitrous will not happen unless you spend a ton of money.

My friend has a 99 Anniversary edition camaro which he ran 13.8 when it was stock. The SS is only like 10hp more. He now runs 13.0 @106 w/ I/H/E and chip. That's on some super hard a/s seasons tires and 17 inch chrome Vette ZR-1 rims. On something stickier he'd be a high 12.