Holley Ford IAC to GM IAC conversion for 550-937F Holley Terminator X

This kit fixes the Ford IAC issues with Holley EFI once and for all , the Holley EFI systems were never designed to run a Ford IAC at 40 percent duty cycle at commanded idle speed , you can add a 1D table to try to control it but at best it is a bandaid to a real problem , the real fix is to convert your system to a GM IAC so that you can allow the Holley software to control the IAC as it was designed to in the first place , this kit provides you everything you need and instructions to convert your Ford IAC to a GM style idle air control and get rid of all your issues.