im working on a 2000 silverado that i recently put a z06 cam in. it starts hard and idles very rich and rough. would this cam make it run like this? Specs are 204/218 .550/.550 with a 117.5 lsa. i ran the scan tool on it and i didnt get a map sensor reading. the needle never moved off zero. the map PID was selected in the PID's and there wasn't a line through the map gauge in the digital dashboard, so i figured the sensor was picked up by the program but it never got a reading. anyone know whats going on?