Still working on cat converter\manifold, now when the car is running the idle is way too high (2000-2500rpms)and when I put it in gear it stalls! Can the cat conv. have something to do with that?? Also, I tried tapping the back 2 gates open (just a couple of times) on the carb and it seamed to run even better. Should those back gates be opening or are they supposed to be closed on idle?