I've been plagued with a misfire since first getting the car on the road nearly two years ago and I've just got round to checking the phasing. I was putting it off because it meant butchering a distributor cap. But now, having checked it, I can see that the spark is firing way past the terminal post.
I'm irritated that MSD have apparently assembled the distributor wrongly, but I'm also pleased that I have found the cause of the misfire at long last.
I suppose I now need to order one of their adjustable rotors.
They should really supply these free of charge given that it is needed to rectify their error.
I marked the position of the distributor before pulling it out, but forgot to note the position of the rotor.