Joe with a 4c I am getting consistent 1.61-1.64. With a 5c you should do a little better. I recently swapped back to the stock intake and will be comparing notes on all sections on the 1320.
im going to try that in 2 weeks when i go back to the track..getting the jba 1 7/8's headers this week so we'll see how that helps alsoHave you tried to flash it from idle? My car responded better that way.