Stock piston Rev limit

I've ran stock short blocks with 6 psi of Roots blower boost and upto a 150 shot of N2O, at the same time.
The piston skirts fail when exceeding 8000 rpm. LOL
Run full groove main bearings to get full time oiling to the rod bearings. With boost and RPMs you need the extra oil as those bearings will see a higher load.