OK thanks. Maybe my egr is bad? If I take it out I would want to get rid if it totally. I know I have to block the input to the engine and cap the vacuum line. What about the hose that goes into the secondary air pump?
Fyi. I changed plugss ,coils, fpr and I just bought gas filter.
this i s the problem I'm really having.
I installed the supercharger, placed pcv valves on all the vacuum lines coming from intake except for the fpr and transmission line(cannot locate) I went up to 370cc injectors. I have no vacuum leak as proved with the boost leak test. I tuned te car where a/f is around 14.7.

When in park and neutral the idle goes up and down as te a/f. When I'm in gear the fluctuation is not as bad but it still is not stable.
What about the purge valve? Fuel pump?map sensor?WA the check valves needed at the purge vale and map sensor?