[zuffenhausen]

Hello!

I'm getting ready to do the run-in on a newly-built twin-plug 3.4 liter race engine and I'm wondering what would be a resonable starting value for ignition timing? I've read where twin plugs allow you to set the timing up to ten degrees less advanced than normal, but since this is a new engine combination I'm not really sure what a good starting value would be. Would 25 degrees be good place to start (typical 35 degrees of advance for a single-plug engine less 10)? If it helps, the engine is using GE80 cams, 46IDA Webers, and is running a C/R over 12:1 (on race fuel, of course).

Best Regards,
zuff