Best way for me to properly tune IDA's is on Superflow dyno with MOTEC 02 sensor,tested several SB ford from 289 to full race 331,seems good starting point is F7/F16 emulsion tubes,155/165 main,135/105 air corrector,42mm choke,no air filter or only ITG (move from 135 air to 115) with no losses in HP and torque!
Bernie
Bernie