I've read many of the emissions related threads, is there a way to get a ported NA motor through emissions?

I run a hose directly from my air pump to the split air pipe on my cat and I use alcohol. I failed a test about a month ago, high HC and CO2. On Friday I had a brand new walker cat installed and failed the test saturday. In fact the HCs were even higher.

Is is possible to run straight alcohol? What is a safe mix?

Thanks,
Buzz

 

I would not run straight alcohol, but adding it to your gas is one solution. How big is your porting? A mild street port should not have severe issues with emissions, especially one that has a new cat.

 

maybe leaning out the idle on an SAFC will help.

 

It will idle at 750 rpms. I think it's pretty mild.

 

I would agree.