IDK where that fuel line is going but I haven't seen that before. And the last time I checked, my closest racetrack would not have let me onto the track like that. Not knocking your combo, just saying.
My guess is 333 hp and 433 ftlbs, I dont care what cam is in it, a guess is a guess, lol.
I highly recommend a compression test and
an audio clip of it idling at 14* to 16* @700rpm.
And I agree that the entire throttle mechanism needs to be re-engineered.
For WOT power at the track, yeah you'll need a 750 or bigger carb, but on the street that lil bugger will be fine. For a lil more excitement, ie instant tirespin, a DP carb would provide lots of giggles. If you gotta buy something, I recommend a spread-bore on a spread-bore intake, with some kind of Secondary control.
To stay out of trouble in the turns, My 68 Barracuda is wearing 295/50-15s. Anything less and she kept spinning out; not good in traffic.