I highly doubt the bent valve theory on a SHO engine, but again, anything is possible. Do a compression test on all of the cylinders and have someone watch the readings. If the gauge goes up then shoots back down, you probably have a bent valve. If all cylinders read above 115-120psi, then you're a-ok. If they read lower then that, you may have bad piston rings, a bad head gasket, valve seals, numerous different things. I can't see 1 bent valve in a 24v engine causing the whole engine not to run. May run like crap, but will still run. I agree with the previous posts on the fuel pump. Turn the key to "ON" and see if you hear the fuel pump priming. If not, you have found your problem. (Assuming you have checked all fuses and relays for the pump first) Also, if somebody pushed in the inertia button in your trunk, that could cause some problems. Check continuity between the companion plugs on the coil pack itself (the ones next to eachother) with an ohm meter. IIRC, it should read about 1.4-2.0 ohms of resistance. Check the DIS module to make sure it isn't fried, and just for giggles, pull a spark plug wire out, shove a screw driver in it, and hold it near a ground. Then have someone crank the engine while you look for spark. And yes, the Cam Identification Sensor (Camshaft Position Sensor) COULD give you a no start condition, but in my experiences, it just gives a hard starting condition when it goes bad. The ECU tries 3 different crank/cam combinations when the CID goes bad, and usually fires right up on the second try. Good luck, hope this helped.
