ok, i have a86 mustang Sspeed Density, i added 24# injectors and bigger spark plug wires and so on. then it just died and stopped wanting to run. so i bought the conversion kit to make it havea mass air, now it runs but the idle is horrible and then after like 5 min it dies. i unplug the egr it doesnt really do anything, when i unplugthe idle air control valve it just dies and its brand new. the vacum lines are all hooked up as i can see.any suggestions?

 

You need to put your 19lb injectors back in. If you want to keep them, you have to do one of 2 things, get a MAF matched to run 24's or get a tune.