for the fun I like your baseline carb Demon RS next pick would be the Holley ultra hp/xp

688hp 652 torque on the demon baseline carb

705hp 667 torque on the Holley ultra

you mentioned 93 octane fuel my engine program shows that it needs more octane, at least 105

And if you have time it shows that it might like the cam installed heads up at 108, instead of advanced to 104.

The ramp rate the dyno guy pulls the engine at will affect the HP numbers as well. I used 600rpm per second ramp rate for the pull.