[Rivet]

Thank you Pete, my gut was comfortable with 7.5k as a ceiling with safety margin built in, the extra 500-700 rpm was making me uneasy.

In the race motorcycle motors I build for customers this type of build almost always gets a set of rods just for safety sake. We can invest a ton of time and money on a set of engine cases and putting a hole in one can be a huge setback in time and money to prepare another set (not unlike building a Porsche motor)

The cams are DC60 and I am expecting it to make power to the mid 7k rpm area so 8-8.2k rpm would be about the ceiling accounting for RPM drop per gear change.