[68l30]

I'm looking for info on a 70 L-78 Nova auto trans.I will be looking for correct exhaust manifolds for this car and need to know, smog or no smog.The car now has no signs of a smog system but was a street freak in New York in the early 70's and everything not ment for performance hit the trash.The car has 20k on it and had the original paint and a lace overlay till recently .The headers are next to go.Thoughts??????

Steve