Just trying to share my experience over the years. The converter thing is definitely a tough one. I have been through a number of them myself in both cars. We are happy where we are for now with my junk but once we get the motor back from freshen up I am sure we will be out in left field again.

I agree the AFR and G meter will tell ya a lot. Data is good for sure but learning how to use it takes some time for sure. Seems like we learn something everytime we go out with the HS car.