Given what zzps site says for the cam it should support 3.0 on a non ic engine and the dyno sheet shown on that pages also shows 400 plus hp and 400 plus tq.
(yes I get it that car has way better heads is intercooled and on a way smaller pulley that's not my point)
given the info on the cam and staggered pushrod length for intake and exhaust. I can understand the engine hp and tq numbers climb almost parallel to each other. Which mirrors your hp and tq numbers.
All of this still makes me believe headers injectors and a smaller pulley with another tune obviously would make this car an entirely different animal!
Btw please explain how injectors and a smaller pulley would help when its still being choked out? Can't cram more air in if you can't get it out.......