Megasquirt 4.2 ABH V8

Hi Everyone,
I am fitting my Audi 4.2l ABH v8 in my kitcar. The ecu I am using is a Megasquirt MS1 V3 using wasted spark and a 36-1 trigger wheel on the front pulley.
I am using 2 ford coil packs.
Has anyone done something similar?
Does anyone know what the ignition advance settings are?

I have set the wasted spark pairs as:
1 - 6
5 - 3
4 - 7
8 - 2

The engine fires but backfires through the inlet manifold and out of the exhaust, so something is wrong. I have a great spark and fuel
Any help would be awesome as I am going crazy trying to get this started!
[image]http://s509.photobucket.com/albums/s334/nickt_v12/?action=view&current=DSC_6603_zps93b66a05.jpg[/image]