| | Need to pass CA smog with 224 cam
I have a few months before the car is due which is why I want to address this now. I have TR224 114 LSA with stock tune on a 98 ls1. Has anyone passed CA smog without it getting tuned or other comparable small cam? Everything else is good to go (ie. stock manifolds, stock cats, all smog equipment installed, no codes). The exhaust periodically gets a sulphur smell which from my research suggest the cats are being affected by the rich air/fuel mixture from the cam and can eventually fail. Any input would be appreciated.