me and my friends install the kunk2 manifold and a hondata gasket on my 1994 gsr head b20 block, now my iddle drop to 600 rpm when i star the car , and before it use to be at 800 rpm , and now sometimes my car turns off when is cold .

also my temperature niddle is 1/4 after the C AND IT USE TO BE right before the middle line .

i dont want my car to be turning off when is cold any idea what could be wrong , ??

and now i feel the car little bit slower from 3000 to 5000 rpm but when the vtec kicks in i feel more power from 6000 rpm to 8000 rpm, i shift at 8000 rpm should also set my tachometer at 8100 cince the skunk2 might aloud me to do so??