H22A Idle bounce/ Misfire

[H22AGEN4]

First of all HI !!
Ive got me a 4GEN accord with a H22A i have swapped into it
Im In Australia and as far as i know im the first to do the swap in the 4GEN.

I have completed the swap and im finding it very hard to diagnose the prob i have.

Quick brief, she idles badly when cold with some exhaust "poping", on start up before she goes into closed loop running.
No problem with vac leeks they are ok
Ive cleaned the IAC valve
Ive had a throttlebody, PGMFI clean.
My timing was advanced 15-20 degrees that has been rectified but she is running worse with severe lack of power.

Anyone else here expeienced simmilar?
I have a EGR code, im going give that a clean this weekend.
The only other thing i can think of is fuel/spark problem

Help........