What type of power needed to compete, with a 427 chebby? (Not stock 427)

Think' nitrous cam, not running it, lower cr to run the nitrous, nope, that 427 ain't putting out that hp. 408, 4.11 or 4,30. 20.5 or 30 inch tall. 4000 converter. 4 link. Bye bye 427.