With enough money you can get as much hp as you want. I have seen Del Sols outrun Corvettes, so anything is possible if you have enough cash. Granted, this is going to at least involve a engine swap, turbo kit, and reinforced internals to make those kinds of numbers, but with an engine swap and turbo running about 6-8 psi, you should be able to squeeze out 250 hp pretty easily with a few other mods such as full exhaust, intake, lightweight pulley, etc. With the power to weight ratio that would give you, you would have an extremely fast car.