Thanks, I'm pleased with them. They worked well today blasting up the M11 to Duxford. I'll take a look at the plugs tomorrow but I think I'm near finished playing with needles and springs. The AFR meter showed it slightly rich so I've leaned them off a quarter turn.
The heat shields came with the car. However I do want a pair of the thick heat insulators for a CD/CDS. My insulators have the notch in the centre which I believe is for the later carbs. The carb and inlet manifold barely cover the notch, in fact I had to turn them around as there was air hissing in when I fitted them earlier this week.
Anyone know where I can buy them?