03-10-2019, 08:23 PM
Hi
The cups are the correct parts for the double springs, but I'm going to change the springs back to standard as no way would I ever be revving to 5000 rpm or anywhere near.
I was probably foolish to fork out for a sports block but my original block needed a complete refurb. and I thought it was another way to proceed.
Saying that I've had 3 years trouble free running but recently I'd noticed a significant drop in performance and upon stripping out the valves the exhausts were very badly pitted with a big build up of carbon, hence the decoke.
The cups are the correct parts for the double springs, but I'm going to change the springs back to standard as no way would I ever be revving to 5000 rpm or anywhere near.
I was probably foolish to fork out for a sports block but my original block needed a complete refurb. and I thought it was another way to proceed.
Saying that I've had 3 years trouble free running but recently I'd noticed a significant drop in performance and upon stripping out the valves the exhausts were very badly pitted with a big build up of carbon, hence the decoke.