Sunbelt got 208hp at the crank on an ITS spec L24. That's a stock E88 head (no porting, stock size valves, stock can, stock springs), stock bottom end, SU carbs, headers, ignition. The customer paid close to $10k forvthatcengine and all the R&D and parts swap blue printing. He went on to with ITS at the ARRC two yeasts in a row.
Without the rules limitations you can get 250 or more horsepower with the same budget. That's why sane people don't artificially limit their builds with some odd parameter.