hi all, i spend yesterday removing my intake manifold and replacing the gasket with a newsouth power gasket, ps. this is a more annoying job that people said it would be, but anyway its done now. problem is when i was replacing the screws and tighting them ( from the centre out) i sheared the head off the middle upper one. i really pisses me off, im so dam mad at myself . could some one please tell me what my options are... is the car safe to run with that one bolt missing ( snapped off) ? and what is the possibility of removing it with out taking the engine to bits...? im guessing that at the very least i might need to be drilled out. any advice to rectify my stupidity would be greatly appreciated!!!