combo opinions and power estimates

okay here is the old combo, stock bottom end 107k tfs tw heads ecam 16 rr cobra intake stock injectors 70mm ma meter 65 t body 158 shorty headers 2 1/2 in hi flo cat x pipe and and mac cat back. car made 276 rwhp and 308 tq

new combo fresh 306 holley systemax intake,70 mm t body 80 mm ma meter 30lb injectors anderson b 41 cam and the same exhuast system and the same tfs heads what do you guys think good choices? also what are your guesses on the power output? thanks in advance, jim

yeah a p1sc in the near future so i dont wanna have to do a cam change once the motor is in the car. people i have talked to said the power difference wont be that much with the blower cam vs the na cam. thanks for the response