New doorslammer record pro mod, 5.35/272 mph

https://www.dragzine.com/news/breaking-jose-gonzalez-resets-1-4-mile-pro-mod-world-record/
World Record E.T. Run - Mark Micke's turbocharged Pro Mod Camaro just went 5.35 at 272 mph to the quarter mile during a test session at Bradenton Motorsports Park! Driven by NHRA Pro Mod driver, Jose Gonzalez, and tuned by Steve Petty. The car is powered by a twin turbocharged PLR Hemi engine with a 3 Speed Turbo 400
No idea what a PLR hemi "is" AKA is it a 3rd party redesign of a G3, or a completely original 3rd party design, or what?
https://www.prolineracing.net/products/plr-raised-cam-hemi-engine