B8/Z6 idling high rough cold start
 

95 cx with b8 bottom and new z6 head is hard to keep running when its cold outside but once it warms up it runs but not right. the idle is 1500 when cold and 1750 once it warms up and will drive fine ut is choppy at lower rpms and sounds like it is missing or something when under heavy throttle at lower rpms in like third through fifth. i am still running cx tranny. here is what i have don as of now. I have been researching this for a few weeks now and am at a complete loss for what it could be and refuse to take it to someone and pay when i know i can figure this out somehow

now stock z6 head
brand new dizzy and upgraded cap and rotor kit from autozone
new z6 wires from autozone
brand new iridium bosch plugs
y8 multi layer head gasket
stock z6 intake mani but it does have a y8 obd2 throttle body
running on a ziff socketed and chipped p28 on crome with mini me base map
dc header test pipe 2.5" exhaust
short ram intake 3" I.D

everything else for the most part mechanically is stock. the car runs decent and i limp it to and from work on the interstate at 60-70 mph and it runs alright but sounds like its missing or something. maybe the timing is off a tooth but would it make it idle so high? i didint think it would but im at a loss now and just want my dd back on the road :( thanks everyone hopefully i get some responese this time around.

Had dirty injectors bad ground and timing a little too retarded. After getting finally getting a chance to get in there and see whats going on I found it was a simple fix...... Guess I don't need anyone after alm ththanks ha ha