I hope they customized the injection mapping, but the GM LUU engine is still a naturally aspirated gas engine with 10.5:1 compression and 73.4 x 82.6 mm bore/st

I hope they customized the injection mapping, but the GM LUU engine is still a naturally aspirated gas engine with 10.5:1 compression and 73.4 x 82.6 mm bore/stroke ratio, measurements which primarily came from the ICE-only target applications it was designed for.