Here’s video of Mr Pontiac at Norwalk in his 67 white GTO with combination I mention earlier, recap on the combo 461 ci, out box E-Heads just clean up. performer RPM intake, Q’jet and Crower 60919 cam. Scroll to 55 minute into the video, this is his 11.60 pass, with a block of wood under gas paddle to keep it from going faster then 11.60’s. Real nice street cruiser.
https://youtu.be/Ag1a7Q-ENW4