By the way, this is how I do it, others do other things.....
On this page you can see some stock and modded engines to see what are the differences,
http://www.first-racing.eu/html/steuerzeiten.html[/QUOTE]
Roelof:
That link is also in Dutch, but I can understand it though. The OS TZ-18 has an additional 17 degrees of timing when modded?!! Stock (204) and Modded (221). That's a nice increase in duration. Where are you cutting this particular crank, (opening, closing or both) and how do they run after your modifications?