Well I just relized my head gasket blown in my 1990 Crx si. I have about 400 dollars to spend on fixing it. My question is what can I do to gain some horsepower and most of all torque, while I have the head off. I already have a ebay intake, ebay header, and 2.25 in exhaust with vibrant muffler. I need this done in a weekend so no major engine build. I was thinkin a thinner headgasket, maybe shave the head and port the intake manifold. Please help this my daily driver.