To my knowledge Barton's Drag Pak Challenger still has the fastest NA NHRA Stock Eliminator ET ever. On the Wallace Calculator his 8.54 ET @ 157 MPH
(minimum FS/B class weight of 3350) computes to:

Your HP computed from your vehicle ET is 954.30 rear wheel HP and 1,060.33 flywheel HP.
Your HP computed from your vehicle MPH is 910.62 rear wheel HP and 1,011.80 flywheel HP.

Other Gen 3 Hemi NA builds:

814 hp - Modern Muscle Extreme NA build: https://hotrod.staging.enthusiastnetwork.com/articles/build-800hp-6-4l-hemi-no-boost-no-nitrous/

832 hp - bodoboy NA build: https://www.youtube.com/watch?v=XFLi9U-f0w0

882 hp - budoboy NA build: https://www.yellowbullet.com/threads/882-hp-676-tq-from-n-a-gen-3-hemi.1464330/