i have a 1968 barracuda with a 408 i have gone through all the steps in the setup i have the flaps so the come on at the same time and have turned them 11/2 turns and the car idles good till it get just to about 150 degrees then it shuts down to get it to stay running i have to turn the flaps another 1/2 turn it runs but at 2200 rpm i let the computer go in to learn mode then i try to turn the screws back in small amounts letting it level out at this time my iac reads zero the lowest rpm i can get it down to is 1300 rpm then if i try to turn it back any more it stalls out and will not restart till i get engine temp gets down below 150 degrees and i have done the new upgrade witch got rid of m o2 sensor code i have checked for vacuum leaks i have checked all my wiring everything is good not sure what to do now