You don’t mention any budget. That’s a big variable that’s missing.
300hp to the tire is about 350 at the crank. I would find an LA 360, rebuild it with top quality machine work. I’d use the stock heads. Plug the AIR holes if they have them. Go up to 2.02 intakes, done on a modern seat machine that cuts 5angles. Run a moderate hydraulic cam (I like Comp for overall value but anything with 225* at .050 will work. A decent 4bbl intake and a Thunder AVS. It will exceed that number fairly cheaply. Have your transmission rebuilt. Don’t buy a TCI.
Run 3.23 gears.
It’s not a new car. It will rev more than your Honda on the highway at speed. That’s not a problem or “bad”, and as long as the package is matched and tuned right mileage will not suffer.
