Help with cg13

[Colin-cg13]

Fitted a cg13 to my k11 a couple of months ago
Ever since fitted it has a misfire through the rev range.

Also on start up it 'hunts' on idle for a few seconds

Just recently replaced the timing chain as it was a bit loose

Also changed the distributer to see if it helped but no joy


Any ideas or anyone else had this problem?

 

[Thieme]

Any airleaks or loose vacuum hoses?
Properly put in all the plugs?
Set the timing to the correct value using a strobe?
Is the MAF still good?

A video might help most of the times unless any of the more able guys on here have a better idea.