Where you show is where the service manual says to measure it at as well.
Anyone who has done this in mm, what did you set it to?
When measured in inches there is much less margin for choice, for example exhaust is 0.007-0.008in so really you shove a 0.007in gauge in there and go with that. I will be using gauges that are in mm, so I have the choice of 0.17, 0.18, 0.19, 0.20 and 0.21mm gauges.
I am being told by Prelude racers that 0.17mm - 0.18mm is better for increased lift & duration.
