Tpi 5.7 1990 Speed Density....
I have removed the emmisions box and pipes to save space and tidy the looks as the engine is in an Astro..
But now it runs really bad...
It starts okay(sometimes) and idles okay all seems fine...Then a few minutes later it stalls has a lot of trouble starting then pumps loads of smoke and smells really rich..

How can i trick the car into running okay once cold start has finished?

Thanks