Why won't it start properly? (KR 1.8 16v conversion)

Hi all, this is my first post so here goes. Have had my Mk1 for 6 months or so have had work done on it and is now pretty much tip top apart from when I go to start hot or cold it turns over but once it starts it sounds like its running on 2 or 3. I know this has been brought up before but just need a little guidance, have just changed all the injectors and lines thought that may solve the problem but to no avail.
Have had all the fuel lines and pump changed, have changed spark plugs, but no other electrics(apart from re wire from crazy quiffs) has an Abf dizzy leads etc all the same from when I bought it, will be changing all this soon. So are there any pros that could point me in the right direction please.

Is the dizzy abf or just the cap? 

Kr and abf have different dizzys and Kr lets you adjust the ignition timing and this could be part of your problem. 

Is it running on standard Kr (k-jet) or abf management? 

Also what work have you had done? 

My Kr wouldn't run right down to the metering head. If you have a spare injector, you can take an injector out of cylinder 1 with hose attactched, bung a apsare injector in the cylinder and see if the injector is working correctly. And repeat this for all four cylinders. 

Have you had a compression test (or is it rebuilt?) 

Just the cap as I know, but I don't know that much.
I have just changed all 4 injectors and pipe work, but still doing same thing as before. I have had all fuel lines inc pump from what I have been told also I think the accumulator has been changed but will be checking with garage. I thought it was fuel related but could be electrical, I have changed spark plugs but that is all the electrical side apart from a re wire. Really bugging me now.

http://www.vwgolfmk2.co.uk/viewtopic.php?f=37&t=25972&

Think I have fixed it, fuel pump hasn't been changed, return valve knakered,will be changing. Did the bridge of the relay and started fine with the pump priming on first click of ignition instead of it kicking in when starting. Thanks all will let you know how I get on.