Quote:

With that cam the lowest gear I'd run would be 3.55's. 3.91's would be ideal. I doesn't start working until about 2k...so keep that in mind.



I agree, I run that same cam in a 440, and the powerband starts at 1900-2000 rpm. Normally not an issue in an automatic (converter would normally slip past 2K under heavy foot) EXCEPT that you have those really tall gears and you don't state the diameter of your rear tires.

You might want to see if the bog occurs under 2000 or not.
The issue can be fixed with carb tuning if not, but if you are lugging the motor that much at 'cruise' it may require 3.23's