just putting in a new crower stage 1 cam and now i have a rich misfire. the car had a previous low threshold in the seconday o2. would this cause the condition or what would?

 

How do u know u are rich? Did u check the valve's while u were down there to make sure they were within spec? How do your sparkplugs look?

U should be leaner near the top end, but u really shouldnt be able to notice that without a dyno, as stage 1 isnt to much more aggressive than stock.

 

i ran it on a gas analyzer and had a rich condition. the secondary o2 says the car has is lean. i have a highg flow cat and i think that is the cause. i will swap it out tomorrow but i want to keep my options open