- Dec 11, 2021
- Portland OR
I’m having trouble passing emissions in Oregon. 10x’s the legal limit for CO at idle. From what I’ve read it seems like I need to replace the smog pump but I have exhaust headers. Is this even possible or do I need to go back to a stock exhaust manifold. 2F, Holly 2 bbl and HEI distributor. I have none of the original emissions stuff. Any ideas.