Stock 340 dyno tests?

How much horsepower would a solid .528 purple shaft, an Ld340, 750 holley at a very stock compression 'reality 9.5 comp' be worth .. maybe 40hp? Maybe 48hp?

People breaking down individual increases like headers and 14 to 18 horsepower increase but what's the rest of the combo that might matter, a 750 in place of stock for another 10 or 15 a cam for maybe 20-25hp..the tune itself ontop of all those... 60hp?

If we dont even know stock hp..can guess our way backwards...

believe 310-335 hp stock is reasonable.
Is this now tuned or stock tune? There's a lot to think about.