early Ford V8 flathead motor catalytic converter?

[Lawrie]

I ran our 33 through an emissions tester that was set up on the uphill exit ramp from the motor way a few years back, I went back and spoke to the guy who was setting it up after I had driven through,, he asked what sort of anti pollution stuff was on the 33 engine,I replied none, he response was,:thats surprisingly clean :
Lawrie