The problem is you didn't fix the idle mixture properly so it will need to fix and correctly adjusted. Make sure to tighten the top nut it will help in proper balance of carbs.
That's really exciting sale, i'm very interested. Is it available now or somebody here can tell me when this these offers are going to available again?
It's easy but complicated at the same time, actually these new things can get your cars to perform very worst so it's better if you stay with the originals.
The idea of replacement will be good, you need to be careful with it's balance and resembling that's it you gonna get a beast in it get ready for this.