99 cobra - cold start problem

[bmnova]

I was wondering if anyone has any information on an issue that I am having with my cobra. When it is cold outside, below 60 degrees, my cobra doesn't want to start or staying running and blows smoke. On warm days, the car starts and runs great? The car is not stock, vortech s-trim with cooler, 42 lb injectors, anderson power pipe, anderson pms, 80 pro m, headers, mac cat back, h-pipe with cats, 3:73, tko 600, dual friction centerforce. Again on warm days..the cars starts, runs great and doesn't blow any smoke. On cold days I can't keep the car running....why do you think is the problem???