So, I want to see if you guys can help me decipher whats wrong with my car, I have a few opinions but would like to see what the community says.

Ive got a 92 Civic Vx with a modded B18C1
The important mods to the engine are as follow
-I/H/E
-JDM ITR Pistons
-ITR Cams
-Titanium retainers
-ITR Dual Valvesprings
-Exedy 11lb fly.
-Head Milled .007"
-Skunk2 Valves (standard comp)
-ARP Head Studs
-Toda Cam Gears (0,+2)
-Stock Headgasket (I think this is important to mention)
-Semi-tuned P72 (Tuned for a bit lower compression and gsr cams)

I installed the new valves, valvestem seals, head studs, cams, and cam gears, along with everything else that comes with assembling a cylinder head, myself. Got a valvejob at DNR Performance, and installed a new OEM head gasket. I torqued everything down to specs, double and triple checked it.

Here's the problem, sometimes I blow a ton of white smoke out the exhaust (more noticeable when it's cold out), the idle is sometimes normal, and other times it's low and rough. Then when I listen carefully to the exhaust I can hear knocking coming in the form of disturbed exhaust flow (little puffs and pops of exhaust) but the MOST DISTURBING problem is, when I start the car in the morning, it doesnt want to start without the throttle being partially open, and when it finally does start, it pings and knocks and makes all kinds of nasty noises until its warm, then its still audible slightly through the exhaust as I mentioned a second ago.

Things I know: Idle air control valve gasket is missing, I need to replace that asap. Im running about 11.8:1 Compression according to zealautowerks.com
B18C1
JDM ITR Pistons
Head Milled .007
= 11.8

I had rebuilt the head no more than 500 miles ago!
The head was milled by previous owner, >30,000 miles ago.

My Idea:
A) Either the head gasket has gone bad (blown) already causing: white smoke/bad idle
B) Head has warped causing: white smoke/bad idle
C) Tune is crap causing: knocking/bad idle
D) IACV Gasket is the cause of idle problem
E) All the above

Im sure there are a ton of questions so please ask away and I'll tell you everything you need to know short of my credit card numbers and social security number.. SO ASK!