Bill this is not a bracket racing or endurance engine, a pass for me is 2.5 seconds or less and only about 40 passes a season, all of this was considered in design and build. I hope it doesnt ever turn 10k but if it does it shouldnt hurt anything, max hp should be between 8000-8600. I plan to shift @ 8200
My combo from last year had same crank with Lunati Pro Mod steel rods and I turned it up to 9200 several times without hurting anything.