The Engine, Rebuilt it a long while back, bored it out, made a cold air intake, new cam, polished and balanced crankshaft. New teflon coated piston. i believe they are titanium. i cant remember. I also Shaved the head and had bigger valves put in. Stock injectors still. stock pulley. Im hoping to paint the valve cover sometime. My car does 0-60 in aut 6 seconds. its 6.1 averaged. this engine will handle turbo and nitrous. My PSI per cylinder is 196. Any other questions ya need to know, ask and i can hopefully give an answer.