your getting great advice on your head gasket problem. just be very careful with torque specs. be sure to torque your head evenly and correctly when puting it back on. as for mods to do im tired of seeing all of these little riceboys adding all of these performance parts on their cars without reenforcing anything. i plan on using nitrous on the motor(H22A1) im putting in a 1986 honda prelude and i have been critisized by a member of my auto class claiming that no honda motor can take nitrous. you have to reenforce alot of stuff before doing major mods like that. nitrous is great for that sudden boost without having all of that boost all of the time even when you dont need it. plus nitrous is much cheaper than supercharging or turbocharging.