Well I recently installed a 2.76 upper with a BAMA tune from American Muscle and found out after the pull the IC pump wasnt working so I made LOW numbers due to IAT2's reaching 180+ and resulting in super low timing (8 degrees) I ended up making 386rwhp(10 less than stock) and 412 ft lbs.
I recently installed a new IC pump and changed the fuel filter and cleaned the MAF because those were maxing out and these were my results:
DEFINITELY a lot better even with a pig rich tune. My IAT2s were in the low 90s and timing was at about 17 degrees. Definitely more on the table with a more agressive tune but this is plenty for me and for it to be a super safe tune. Im more than satisfied with the results, not bad for a 92K mile DD Cobra!! For reference, my dyno numbers before the pulley/tune were 396rwhp and 368 ft lbs of torque.