The car runs good and strong. I am having a problem with the car at idle. when i do not give it gas the car idles to about 600rpm and starts to bogg real bad then cuts off. i have dsm 450's bluetops and that is because my h22 injectors were cracked and i had some laying around. Runs good through rpm range but when at idle it sounds lack backfiring or miss then it dies out. I don't know what it could be all ideas i thank you

 

check timing, check spark plugs, see if they're running rich,lean, or stoich. And cels?Try cleaning ur IACV and FITV.