Yes, when they were tuned they had a habit of blowing head gaskets if you weren't spot on torqueing the head down right! Mine had the cylinders bored out, High Compression Powermax pistons, Piper high lift cam, twin Webber 40's and a limited slip diff! A can remember them been police cars Northumbria police
As long as you got all of the torque setting right they were quick and reliable! Pulling off the start line my front wheels were rarely on the ground for the first 20 yards or so!
Ah, definitely sweet, sweet memories!

(Back in the days when I had hair growing on my head rather than just out of my ears and nose

)