Right chaps been helping a mate out with a poorly 2L ZVH

Problems are very lumpy running like on 3 pots, loads of black smoke at 1200 rpm as will not tick over, sooty plugs.

swopped all parts for known working items:
plugs and leads
dizzy cap and arm
injectors.

Engine has never been run and is using a ferriday decomp joint @ approx 7.5-1. Using MFI turbo injection, std cam and ecu at the mo.

Tried disconnecting the cold start valve but no joy. Valve timing is a close as it goes with out a vernia on a ZVH.

you have to turn the dizzy right round to start it but then adjust to keep running and then will not restart in this possition

Only been ran for short periods at tickover and 3000 rpm as something is wrong big style. My head is fried now and need some fresh advice.

Cheers for any help / suggestions.

Bri