Frankly...... at this point, I’m more suspicious of the EFI than I am the converter with regards to the 60’ times.
Who has some track experience where they went from a good running carb, to one of these budget style EFI units and has some accurate data to share from the swap?
I agree. I would get the bog tuned out and AFR at WOT AFR for best mph fixed before throwing a converter at it. Once the engine is tuned you can calculate converter slip at the stripe and have good data for a new converter if needed.
