Smog stopped rolling at 75 in California. I have no catalytic converters and according to California smog law, it would be illegal for me to install them as it would be a modification of the original smog system. Also, my current radiator is a 2 row that has a large section of the core rotted out and has a few holes in one of the tanks that I have been trying to solder up. But, my local radiator shop should have a brand new 3 row waiting for me to pick it up tommorow, if I can get my current radiator to hold water long enough to drive down there.