Alex,
This will subject ANY car from 1966 on to the roadside test. A gross polluter will be a gross polluter regardless of the year. Plus, if you don't have your conversion 'Certified' you will automatically be screwed.
Also,
If the car has no bumpers, marker lights, or if the windows are too darkly tinted, etc ,etc....screwed....
Better brush up on your knowledge of the CA Vehicle Code fellas!!