I tell people like Charlie66 to stay under 27 degrees of total timing.
He has never hurt anything with that suggestion due to combustion issues.
But he took baby steps to get there. I would start out at 22 degrees and learn how to read plugs as well as having a a good Air/fuel meter system initially. Just because you are at lower boost DOES NOT mean that the timing is wrong. Make the power with boost, not timing.
Stay below 27 degrees and you will have an engine that will live a long time and when you turn the boost up it will continue to live.
A bad decision in timing has hurt more boosted engines than any basic failure of parts.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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