1982 Chevy El Camino Smog leagal

I've never personally delat with legal smog visual inspections, but putting a newere engine in an older car, they run alot cleaner thatn the old82 would. But you would have to make sure you are using a computer with it This would require you to put at least an O2 sensor in each exaust. You could use an aftermarket what they call a short computer as it doesn't have all the controls a factory unit does.